#include using namespace std; #pragma GCC optimize("O3") #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[9]={1,0,-1,0,1,1,-1,-1,0}; const ll dx[9]={0,1,0,-1,1,-1,1,-1,0}; template inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } int main(){ ll a,b,c,d;cin >> a >> b >> c >> d; vl x,y; if(a==b&&b==c){ assert(a>=3); x.emplace_back(0);y.emplace_back(1); x.emplace_back(1);y.emplace_back(0); rep(i,c-2){ x.emplace_back(i+1);y.emplace_back(i+2); } ll v=y.back()+1; if(x.size()<=d&&c>=2){ cout << v << " " << x.size() << endl; rep(i,x.size())cout << x[i] <<" " << y[i] << endl; } else{ cout << -1 << endl; } } else{ ll pos=0; if(a1){ x.emplace_back(pos);y.emplace_back(v); } rep(i,a-2){ x.emplace_back(v);y.emplace_back(v+1);v++; } pos^=1; if(c==b){ rep(i,x.size()){ if(x[i]==v-(c-1))x[i]=pos; if(y[i]==v-(c-1))y[i]=pos; } } else if(c==0){ v++; if(b>1){ x.emplace_back(pos);y.emplace_back(v); } rep(_,b-2){ x.emplace_back(v);y.emplace_back(v+1);v++; } } else{ ll f=v-(c-1); if(b-c==1){ x.emplace_back(pos);y.emplace_back(f); } else{ v++; x.emplace_back(pos);y.emplace_back(v); rep(i,b-c-2){ x.emplace_back(v);y.emplace_back(v+1);v++; } x.emplace_back(v);y.emplace_back(f); } } if(x.size()<=d){ vl pls={0,1};rep(i,x.size())pls.emplace_back(x[i]),pls.emplace_back(y[i]); sort(all(pls));pls.erase(unique(all(pls)),pls.end()); cout << pls.size() <<" " << x.size() << endl; rep(i,x.size()){ ll f=lower_bound(all(pls),x[i])-pls.begin(); ll g=lower_bound(all(pls),y[i])-pls.begin(); cout << f <<" " << g << endl; } } else cout << -1 << endl;; } }