#include #include using namespace std; using namespace atcoder; typedef long long int ll; typedef long double ld; typedef vector vi; typedef vector vl; typedef vector vvl; typedef vector vvvl; typedef vector vvvvl; typedef vector vb; typedef vector vvb; typedef vector vvvb; typedef vector vvvvb; typedef pair pl; typedef pair ppl; typedef pair pppl; typedef pair pppppl; #define rep(i,a,b) for(int i=(a);i<(b);i++) #define rrep(i,a,b) for(int i=(b)-1;i>=(a);i--) #define all(a) begin(a),end(a) #define sz(a) (int)(a).size() #define F first #define S second #define bs(A,x) binary_search(all(A),x) #define lb(A,x) (ll)(lower_bound(all(A),x)-A.begin()) #define ub(A,x) (ll)(upper_bound(all(A),x)-A.begin()) #define cou(A,x) (ll)upper_bound(all(A),x)-lower_bound(all(A),x)) templateusing min_priority_queue=priority_queue,greater>; templatebool chmax(T&a,T b){if(abool chmin(T&a,T b){if(b vm; typedef vector vvm; typedef vector vvvm; typedef vector vvvvm; ostream&operator<<(ostream&os,mint a){os<>(istream&is,mint&a){int x;is>>x;a=mint(x);return is;} //*/ templateostream&operator<<(ostream&os,pairp){os<istream&operator>>(istream&is,pair&p){is>>p.F>>p.S;return is;} templateostream&operator<<(ostream&os,vectorv){rep(i,0,sz(v))os<istream&operator>>(istream&is,vector&v){for(T&in:v)is>>in;return is;} int main(){ cin.tie(0)->sync_with_stdio(0); cin.exceptions(cin.failbit); ll N;cin>>N; vvl A(N,vl(N)); if(N%2==0){ ll cnt=1; rep(i,0,N/2){ if(i%2==0){ rep(j,0,N/2){ A[2*i][2*j]=cnt++; A[2*i+1][2*j+1]=cnt++; A[2*i+1][2*j]=cnt++; A[2*i][2*j+1]=cnt++; } } else{ rrep(j,0,N/2){ A[2*i][2*j+1]=cnt++; A[2*i+1][2*j]=cnt++; A[2*i+1][2*j+1]=cnt++; A[2*i][2*j]=cnt++; } } } } else{ ll cnt=1; rep(i,0,N/2){ if(i%2==0){ rep(j,0,N/2){ A[2*i][2*j]=cnt++; A[2*i+1][2*j+1]=cnt++; A[2*i+1][2*j]=cnt++; A[2*i][2*j+1]=cnt++; } } else{ rrep(j,0,N/2){ A[2*i][2*j+1]=cnt++; A[2*i+1][2*j]=cnt++; A[2*i+1][2*j+1]=cnt++; A[2*i][2*j]=cnt++; } } } if(N%4==1){ rep(i,0,N-1){ if(i%2)A[i][N-1]=cnt++,A[N-1][i]=cnt++; else A[N-1][i]=cnt++,A[i][N-1]=cnt++; } A[N-1][N-1]=cnt++; } else{ A[N-1][N-2]=cnt++; A[N-2][N-1]=cnt++; rep(i,0,N-2){ if(i%2==0)A[i][N-1]=cnt++,A[N-1][i]=cnt++; else A[N-1][i]=cnt++,A[i][N-1]=cnt++; } A[N-1][N-1]=cnt++; } } rep(i,0,N)cout<