#include<bits/stdc++.h> using namespace std; int main() { int a[1001][1001]; int n,m; cin>>n>>m; for(int i =1;i<=n;i++){//行 x for(int j =1;j<=n;j++){//列 y cin>>a[i][j]; } } for(int j =1;j<=n;j++){ for(int i=1;i<=n;i++){ if(i==j or i+j==n+1) cout<<a[j][i]+m<<" "; else cout<<a[j][i]<<" "; } cout<<endl; } return 0; }