#include <bits/stdc++.h>
using namespace std;
#define all(...) std::begin(__VA_ARGS__), std::end(__VA_ARGS__)
#define rall(...) std::rbegin(__VA_ARGS__), std::rend(__VA_ARGS__)
#define OVERLOAD_REP(_1, _2, _3, _4, name, ...) name
#define REP1(n) for(ll i=0;i<(n);i++)
#define REP2(i, n) for (ll i=0;i<(n);i++)
#define REP3(i, a, n) for (ll i=a;i<(n);i++)
#define REP4(i, a, b, n) for(ll i=a;i<(n);i+=b)
#define rep(...) OVERLOAD_REP(__VA_ARGS__, REP4, REP3, REP2, REP1)(__VA_ARGS__)
#define OVERLOAD_RREP(_1, _2, _3, _4, name, ...) name
#define RREP1(n) for(ll i=(n)-1;i>=0;i--)
#define RREP2(i, n) for(ll i=(n)-1;i>=0;i--)
#define RREP3(i, a, n) for(ll i=(n)-1;i>=(a);i--)
#define RREP4(i, a, b, n) for(ll i=(n)-1;i>=(a);i-=(b))
#define rrep(...) OVERLOAD_RREP(__VA_ARGS__, RREP4, RREP3, RREP2, RREP1)(__VA_ARGS__)
#define uniq(a) sort(all(a));a.erase(unique(all(a)),end(a))
#define len(n) (long long)(n).size()
using ll = long long;
using ld = long double;
using ull = unsigned long long;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vll = vector<ll>;
using vvll = vector<vll>;
using vvvll = vector<vvll>;
using vs = vector<string>;
using vvs = vector<vs>;
using vvvs = vector<vvs>;
using vld = vector<ld>;
using vvld = vector<vld>;
using vvvld = vector<vvld>;
using vc = vector<char>;
using vvc = vector<vc>;
using vvvc = vector<vvc>;
using pll = pair<ll,ll>;
using vpll = vector<pll>;
using vvpll = vector<vpll>;

ll intpow(ll a,ll b){
    ll ans = 1;
    while (b){
        if (b & 1){
            ans *= a;
        }
        a *= a;
        b /= 2;
    }
    return ans;
}
ll modpow(ll a,ll b,ll c){
    ll ans = 1;
    while (b){
        if (b & 1){
            ans *= a;
            ans %= c;
        }
        a *= a;
        a %= c;
        b /= 2;
    }
    return ans;
}

template <typename T>
inline T floor(T a, T b) {
    T q = a / b;
    T r = a % b;
    if (r != 0 && ((r < 0) != (b < 0))) q--;
    return q;
}

template <typename T>
inline T ceil(T a, T b) {
    T q = a / b;
    T r = a % b;
    if (r != 0 && ((r < 0) == (b < 0))) q++;
    return q;
}

template <typename T>
inline T bmod(T a, T b) {
    T r = a % b;
    if (r < 0) r += std::abs(b);
    return r;
}

template <class K, class V>
vector<vector<pair<K,V>>> group_by_first(vector<pair<K,V>> vec) {
    sort(vec.begin(), vec.end(), [](auto& a, auto& b) {
        if (a.first != b.first) return a.first < b.first;
        return a.second < b.second;
    });

    vector<vector<pair<K,V>>> res;
    for (auto& p : vec) {
        if (res.empty() || res.back().back().first != p.first) {
            res.push_back({});
        }
        res.back().push_back(p);
    }
    return res;
}

template<class... T>
void input(T&... a){
    (cin >> ... >> a);
}

#define INT(...) int __VA_ARGS__; input(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; input(__VA_ARGS__)
#define ULL(...) ull __VA_ARGS__; input(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__; input(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; input(__VA_ARGS__)
#define CHA(...) char __VA_ARGS__; input(__VA_ARGS__)
#define VLL(name,length) vll name(length);rep(i,length){cin >> name[i];}
#define VVLL(name,h,w) vvll name(h,vll(w));rep(i,h)rep(j,w){cin >> name[i][j];}
#define VVVLL(name,a,b,c) vvvll name(a,vvll(b,vll(c)));rep(i,a)rep(j,b)rep(k,c){cin >> name[i][j][k];}
#define VI(name,length) vi name(length);rep(i,length){cin >> name[i];}
#define VVI(name,h,w) vvi name(h,vi(w));rep(i,h)rep(j,w){cin >> name[i][j];}
#define VVVI(name,a,b,c) vvvi name(a,vvll(b,vi(c)));rep(i,a)rep(j,b)rep(k,c){cin >> name[i][j][k];}
#define VLD(name,length) vld name(length);rep(i,length){cin >> name[i];}
#define VVLD(name,h,w) vvld name(h,vld(w));rep(i,h)rep(j,w){cin >> name[i][j];}
#define VVVLD(name,a,b,c) vvvld name(a,vvld(b,vld(c)));rep(i,a)rep(j,b)rep(k,c){cin >> name[i][j][k];}
#define VC(name,length) vc name(length);rep(i,length){cin >> name[i];}
#define VVC(name,h,w) vvc name(h,vc(w));rep(i,h)rep(j,w){cin >> name[i][j];}
#define VVVC(name,a,b,c) vvvc name(a,vvc(b,vc(c)));rep(i,a)rep(j,b)rep(k,c){cin >> name[i][j][k];}
#define VS(name,length) vs name(length);rep(i,length){cin >> name[i];}
#define VVS(name,h,w) vvs name(h,vs(w));rep(i,h)rep(j,w){cin >> name[i][j];}
#define VVVS(name,a,b,c) vvvs name(a,vvs(b,vs(c)));rep(i,a)rep(j,b)rep(k,c){cin >> name[i][j][k];}
#define PLL(name) pll name;cin>>name.first>>name.second;
#define VPLL(name,length) vpll name(length);rep(i,length){cin>>name[i].first>>name[i].second;}

void print(){cout << "\n";}

template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::pair<T1, T2>& p) {
    os << "(" << p.first << ", " << p.second << ")";
    return os;
}

template <typename T>
std::ostream& operator<<(std::ostream& os, const std::vector<T>& vec) {
    os << "[";
    for (size_t i = 0; i < vec.size(); ++i) {
        os << vec[i];
        if (i + 1 < vec.size()) os << ", ";
    }
    os << "]";
    return os;
}

template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::vector<std::pair<T1, T2>>& a) {
    os << "[";
    for (size_t j = 0; j < a.size(); ++j) {
        os << "(" << a[j].first << ", " << a[j].second << ")";
		if (j + 1 < a.size()) os << ", ";
    }
	os << "]";
    return os;
}

template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::vector<std::vector<std::pair<T1, T2>>>& mat) {
	os << "[";
    for (size_t i = 0; i < mat.size(); ++i) {
		os << "[";
        for (size_t j = 0; j < mat[i].size(); ++j) {
            os << "(" << mat[i][j].first << ", " << mat[i][j].second << ")";
			if (j + 1 < mat[i].size()) os << ", ";
        }
		os << "]";
		if (i + 1 < mat.size()) os << ", ";
    }
	os << "]";
    return os;
}

template <typename T>
std::ostream& operator<<(std::ostream& os, const std::set<T>& s) {
    os << "{";
    bool first = true;
    for (const auto& x : s) {
        if (!first) os << ", ";
        os << x;
        first = false;
    }
    os << "}";
    return os;
}

template <typename K, typename V>
std::ostream& operator<<(std::ostream& os, const std::map<K, V>& m) {
    os << "{";
    bool first = true;
    for (const auto& [key, val] : m) {
        if (!first) os << ", ";
        os << key << ": " << val;
        first = false;
    }
    os << "}";
    return os;
}

template<class T, class... Ts>
void print(const T& a, const Ts&... b){cout << a;(cout << ... << (cout << ' ', b));cout << '\n';}

#ifdef LOCAL
void debug() { std::cerr << "\n"; }

template<class T, class... Ts>
void debug(const T& a, const Ts&... b) {
    std::cerr << a;
    (std::cerr << ... << (std::cerr << ' ', b));
    std::cerr << '\n';
}

void debug_space() {}

template<class T, class... Ts>
void debug_space(const T& a, const Ts&... b) {
    std::cerr << a;
    (std::cerr << ... << (std::cerr << ' ', b));
}
#else
#define debug(...) (void)0
#endif

void write(){cout << "\n";}
template<class T, class... Ts>
void write(const T& a, const Ts&... b){cout << a;(cout << ... << (cout << ' ', b));cout << '\n';}
void write(vll x){rep(i,len(x)){cout << x[i];if(i!=len(x)-1){cout << " ";}else{cout << '\n';}}}
void write(vvll x){rep(i,len(x))rep(j,len(x[i])){cout << x[i][j];if(j!=len(x[i])-1){cout << " ";}else{cout << '\n';}}}
void write(vi x){rep(i,len(x)){cout << x[i];if(i!=len(x)-1){cout << " ";}else{cout << '\n';}}}
void write(vvi x){rep(i,len(x))rep(j,len(x[i])){cout << x[i][j];if(j!=len(x[i])-1){cout << " ";}else{cout << '\n';}}}
void write(vvvi x){rep(i,len(x))rep(j,len(x[i]))rep(k,len(x[i][j])){cout << x[i][j][k];if(k!=len(x[i][j])-1){cout << " ";}else if(j!=len(x[i])-1){cout << " | ";}else{cout << '\n';}}}
void write(vld x){rep(i,len(x)){cout << x[i];if(i!=len(x)-1){cout << " ";}else{cout << '\n';}}}
void write(vvld x){rep(i,len(x))rep(j,len(x[i])){cout << x[i][j];if(j!=len(x[i])-1){cout << " ";}else{cout << '\n';}}}
void write(vvvld x){rep(i,len(x))rep(j,len(x[i]))rep(k,len(x[i][j])){cout << x[i][j][k];if(k!=len(x[i][j])-1){cout << " ";}else if(j!=len(x[i])-1){cout << " | ";}else{cout << '\n';}}}
void write(vc x){rep(i,len(x)){cout << x[i];if(i!=len(x)-1){cout << " ";}else{cout << '\n';}}}
void write(vvc x){rep(i,len(x))rep(j,len(x[i])){cout << x[i][j];if(j!=len(x[i])-1){cout << " ";}else{cout << '\n';}}}
void write(vvvc x){rep(i,len(x))rep(j,len(x[i]))rep(k,len(x[i][j])){cout << x[i][j][k];if(k!=len(x[i][j])-1){cout << " ";}else if(j!=len(x[i])-1){cout << " | ";}else{cout << '\n';}}}
void write(vs x){rep(i,len(x)){cout << x[i];if(i!=len(x)-1){cout << " ";}else{cout << '\n';}}}
void write(vvs x){rep(i,len(x))rep(j,len(x[i])){cout << x[i][j];if(j!=len(x[i])-1){cout << " ";}else{cout << '\n';}}}
void write(vvvs x){rep(i,len(x))rep(j,len(x[i]))rep(k,len(x[i][j])){cout << x[i][j][k];if(k!=len(x[i][j])-1){cout << " ";}else if(j!=len(x[i])-1){cout << " | ";}else{cout << '\n';}}}
void write(pll x){cout << x.first << ' ' << x.second << '\n';}
void write(vpll x){rep(i,len(x)){cout << x[i].first << ' ' << x[i].second << '\n';}}
void write(vvpll x){rep(i,len(x))rep(j,len(x[i])){cout << x[i][j].first << ' ' << x[i][j].second;if(j!=len(x[i])-1){cout << " ";}else{cout << '\n';}}}

template <typename T>
T sum(const std::vector<T>& v) {
    return std::accumulate(v.begin(), v.end(), T(0));
}

template<class Set>
auto le(const Set &s, const typename Set::value_type &x,
        const typename Set::value_type &ngval = typename Set::value_type(-1)) {
    auto it = s.upper_bound(x);
    if (it == s.begin()) return ngval;
    return *prev(it);
}

template<class Set>
auto lt(const Set &s, const typename Set::value_type &x,
        const typename Set::value_type &ngval = typename Set::value_type(-1)) {
    auto it = s.lower_bound(x);
    if (it == s.begin()) return ngval;
    return *prev(it);
}

template<class Set>
auto ge(const Set &s, const typename Set::value_type &x,
        const typename Set::value_type &ngval = typename Set::value_type(-1)) {
    auto it = s.lower_bound(x);
    if (it == s.end()) return ngval;
    return *it;
}

template<class Set>
auto gt(const Set &s, const typename Set::value_type &x,
        const typename Set::value_type &ngval = typename Set::value_type(-1)) {
    auto it = s.upper_bound(x);
    if (it == s.end()) return ngval;
    return *it;
}

template<class T> bool chmin(T& a, const T& b){ if(a > b){ a = b; return 1; } return 0; }
template<class T> bool chmax(T& a, const T& b){ if(a < b){ a = b; return 1; } return 0; }
template<class T, class U> bool chmin(T& a, const U& b){ if(a > T(b)){ a = b; return 1; } return 0; }
template<class T, class U> bool chmax(T& a, const U& b){ if(a < T(b)){ a = b; return 1; } return 0; }

vvll ct(ll h,ll w){
   if(h > w){
      auto res2 = ct(w,h);
      vvll res(h,vll(w,-1));
      rep(i,h){
         rep(j,w){
            res[i][j] = res2[j][i];
         }
      }
      return res;
   }
   vvll res(h,vll(w,-1));
   if(h == 2 || w == 2){
      return res;
   }
   vvll dp(h+1,vll(w+1,0));
   rep(i,3,w+1){
      if(3 <= h && i <= w)dp[3][i] = 1;
   }
   rep(i,4,w+1){
      if(4 <= h && i <= w)dp[4][i] = 1;
   }
   rep(i,h+1){
      rep(j,w+1){
         if(i + 1 <= h && j + 2 <= w)dp[i+1][j+2] |= dp[i][j];
         if(i + 2 <= h && j + 1 <= w)dp[i+2][j+1] |= dp[i][j];
      }
   }

   auto f = [&](auto f,ll p,ll q,ll h,ll w,ll x){
      if(h == 3){
         res[p+0][q+0] = x;
         res[p+1][q+0] = x;
         res[p+2][q+0] = x;
         res[p+0][q+w-1] = x+1;
         res[p+1][q+w-1] = x+1;
         res[p+2][q+w-1] = x+1;
         rep(j,1,w-1){
            res[p+0][q+j] = x;
            res[p+1][q+j] = x+1;
            res[p+2][q+j] = x;
         }
         return;
      }
      else if(h == 4){
         rep(j,w){
            res[p+0][q+j] = x+1;
         }
         rep(j,w-1){
            res[p+h-1][q+j] = x;
         }
         rep(i,1,h){
            res[p+i][q+0] = x;
            res[p+i][q+w-1] = x+2;
         }
         rep(j,1,w-2){
            res[p+1][q+j] = x;
         }
         res[p+1][q+w-2] = x+1;
         rep(j,1,w){
            res[p+2][q+j] = x+2;
         }
         return;
      }
      else{
         rep(i,h){
            res[p+i][q+0] = x;
         }
         rep(j,w){
            res[p+0][q+j] = x;
            res[p+h-1][q+j] = x;
         }
         f(f,p+1,q+1,h-2,w-1,x+1);
      }
   };
   f(f,0,0,h,w,1);
   return res;
}

vvll c(ll h,ll w){
   if(h > w){
      auto res2 = c(w,h);
      vvll res(h,vll(w,-1));
      rep(i,h){
         rep(j,w){
            res[i][j] = res2[j][i];
         }
      }
      return res;
   }
   vvll res(h,vll(w,-1));
   if(h == 2 || w == 2){
      return res;
   }
   if(h == 3 && w % 4 != 0){
      return res;
   }
   auto f = [&](auto f,ll p,ll q,ll h,ll w,ll x){
      if(h == 3){
         if(w == 0){
            return;
         }
         res[p+0][q+0] = x;
         res[p+1][q+0] = x;
         res[p+2][q+0] = x;
         res[p+0][q+1] = x;
         res[p+1][q+1] = x+1;
         res[p+2][q+1] = x+1;
         res[p+0][q+2] = x;
         res[p+1][q+2] = x;
         res[p+2][q+2] = x+1;
         res[p+0][q+3] = x+1;
         res[p+1][q+3] = x+1;
         res[p+2][q+3] = x+1;
         f(f,p,q+4,h,w-4,x+2);
         return;
      }
      if(h == 4){
         rep(j,w){
            res[p+0][q+j] = x+1;
            res[p+1][q+j] = x;
            res[p+2][q+j] = x+1;
            res[p+3][q+j] = x;
         }
         res[p+1][q+w-1] = x+1;
         res[p+2][q+0] = x;
         return;
      }
      if(h % 2 == 1){
         rep(j,w){
            res[p+0][q+j] = x;
         }
         rep(i,h){
            res[p+i][q+0] = x;
            res[p+i][q+w-1] = x;
         }
         f(f,p+1,q+1,h-1,w-2,x+1);
         return;
      }
      if(h % 2 == 0){
         rep(i,h){
            res[p+i][q+0] = x;
         }
         rep(j,w){
            res[p+0][q+j] = x;
            res[p+h-1][q+j] = x;
         }
         f(f,p+1,q+1,h-2,w-1,x+1);
         return;
      }
   };
   f(f,0,0,h,w,1);
   return res;
}

vvll t(ll h,ll w){
   if(h > w){
      auto res2 = t(w,h);
      vvll res(h,vll(w,-1));
      rep(i,h){
         rep(j,w){
            res[i][j] = res2[j][i];
         }
      }
      return res;
   }
   vvll res(h,vll(w,-1));
   if(h == 2 || w == 2){
      return res;
   }
   if(h == 3 && w <= 5){
      return res;
   }
   auto f = [&](auto f,ll p,ll q,ll h,ll w,ll x){
      if(h == 5 && w == 5){
         vvll temp = {
            {1,2,2,2,2},
            {1,1,5,2,3},
            {1,4,5,5,3},
            {1,4,5,3,3},
            {4,4,4,4,3},
         };
         x--;
         rep(i,5){
            rep(j,5){
               res[p+i][q+j] = x + temp[i][j];
            }
         }
         return;
      }
      else if(h == 3){
         if(w <= 5){
            return;
         }
         rep(j,w){
            res[p+0][q+j] = x+1;
         }
         res[p+0][q+0] = x;
         res[p+0][q+w-1] = x+3;
         rep(j,w){
            res[p+1][q+j] = x;
         }
         res[p+1][q+w-1] = x+3;
         res[p+1][q+w-2] = x+3;
         res[p+1][q+w-3] = x+2;
         res[p+1][q+w-4] = x+1;
         rep(j,w){
            res[p+2][q+j] = x+2;
         }
         res[p+2][q+0] = x;
         res[p+2][q+w-1] = x+3;
         return;
      }
      else if(h == 4){
         rep(j,w){
            res[p+0][q+j] = x+2;
            res[p+1][q+j] = x;
            res[p+2][q+j] = x+3;
            res[p+3][q+j] = x+1;
         }
         res[p+0][q+0] = x;
         res[p+1][q+w-2] = x+2;
         res[p+1][q+w-1] = x+3;
         res[p+2][q+0] = x;
         res[p+2][q+1] = x+1;
         res[p+3][q+w-1] = x+3;
         return;
      }
      else{
         rep(j,w){
            res[p+0][q+j] = x;
            res[p+h-1][q+j] = x+2;
         }
         rep(i,1,h-1){
            res[p+i][q+0] = x+1;
            res[p+i][q+1] = x+2;
         }
         res[p+1][q+1] = x;
         res[p+2][q+1] = x+1;
         f(f,p+1,q+2,h-2,w-2,x+3);
         return;
      }
   };
   f(f,0,0,h,w,1);
   return res;
}

int main(){
	ios::sync_with_stdio(false);
	std::cin.tie(nullptr);

   #ifdef LOCAL
   {
      debug("C");
      ll m = 20;
      set<pll> s;
      vpll p;
      rep(i,3,m+1){
         s.emplace(4,i);
         s.emplace(i,4);
      }
      for(auto [x,w]:s){
         if(x > m || w> m){continue;}
         s.emplace(x+1,w+2);
         s.emplace(x+2,w+1);
         rep(i,1,10)rep(j,1,10){
            s.emplace(x*i,w*j);
         }
      }
      rep(x,2,m+1){
         rep(y,x,m+1){
            if(s.count({x,y}) == 0){
               debug(x,y);
            }
         }
      }
   }
   {
      debug("T");
      ll m = 20;
      set<pll> s;
      vpll p;
      rep(i,4,m+1){
         s.emplace(4,i);
         s.emplace(i,4);
      }
      rep(i,6,m+1){
         s.emplace(3,i);
         s.emplace(i,3);
      }
      for(auto [x,w]:s){
         if(x > m || w> m){continue;}
         if(1){
            s.emplace(x+2,w+2);
         }
         rep(i,1,10)rep(j,1,10){
            s.emplace(x*i,w*j);
         }
      }
      rep(x,2,m+1){
         rep(y,x,m+1){
            if(s.count({x,y}) == 0){
               debug(x,y);
            }
         }
      }
   }
   {
      debug("CT");
      ll m = 20;
      set<pll> s;
      vpll p;
      rep(i,4,m+1){
         s.emplace(4,i);
         s.emplace(i,4);
      }
      rep(i,3,m+1){
         s.emplace(3,i);
         s.emplace(i,3);
      }
      for(auto [x,w]:s){
         if(x > m || w> m){continue;}
         if(1){
            s.emplace(x+1,w+2);
            s.emplace(x+2,w+1);
         }
      }
      rep(x,2,m+1){
         rep(y,x,m+1){
            if(s.count({x,y}) == 0){
               debug(x,y);
            }
         }
      }
   }
   #endif
   LL(h,w);
   auto ans0 = c(h,w);
   if(ans0[0][0] == -1){
      print(-1);

   }
   else{
      ll m = 0;
      rep(i,h)rep(j,w){
         chmax(m,ans0[i][j]);
      }
      print(m);
      write(ans0);
   }


   auto ans1 = t(h,w);
   ll check = 1;
   rep(i,h){
      rep(j,w){
         if(ans1[i][j] == -1){
            check = 0;
         }
      }
   }
   if(check == 0){
      print(-1);
   }
   else{
      ll m = 0;
      rep(i,h)rep(j,w){
         chmax(m,ans1[i][j]);
      }
      print(m);
      write(ans1);
   }

   auto ans2 = ct(h,w);
   if(ans2[0][0] == -1){
      print(-1);

   }
   else{
      ll m = 0;
      rep(i,h)rep(j,w){
         chmax(m,ans2[i][j]);
      }
      print(m);
      write(ans2);
   }



}

/*
1 3 3 3
1 1 3 4
1 2 4 4
2 2 2 4

1 3 3 3 3 3 3 3 3 3
1 1 1 1 1 1 1 1 3 4
1 2 4 4 4 4 4 4 4 4
2 2 2 2 2 2 2 2 2 4




1 2 2 2 2 4
1 1 2 3 4 4
1 3 3 3 3 4


1 2 2 2 2 2 2 2 2 4
1 1 1 1 1 1 2 3 4 4
1 3 3 3 3 3 3 3 3 4

1 1 1 1 1 1 1 
2 1
2 2
2 3
2 3
3 3 3 3 3 3 3 

1 1 1 1 1
2 1
2 2
2 3
3 3 3 3 3



2 2 2 2
1 1 2 3
1 3 3 3
1 1 1 3

1 1 2
1 2 2
1 1 2
*/
/*
C
1 1 1 2
1 2 1 2
1 2 2 2

2 2 2
1 1 2
1 2 2
1 1 1

2 2 2 2 2 2 2 2 
1 1 1 1 1 1 1 2
1 2 2 2 2 2 2 2
1 1 1 1 1 1 1 1

*/

/*
???????
1 2 2 2 2
1 1 5 2 3
1 4 5 5 3
1 4 5 3 3
4 4 4 4 3

1 2 2 2 2 2 2 2 2 2 
1 1 1 1 1 1 1 5 2 3
1 4 5 5 5 5 5 5 5 3
1 4 5 3 3 3 3 3 3 3 
4 4 4 4 4 4 4 4 4 3

*/