# include<iostream> # include<iomanip> using namespace std; int main(){ int n,a[100][100],m=0; cin>>n; for(int i=1;i<=n;i++){ a[i][1]=i; } for(int i=2;i<=n;i++){ for(int j=1;j<=n;j++){ if(i%2==0) a[j][i]=a[j][i-1]+2*(n-j+1)-1; if(i%2==1) a[j][i]=a[j][i-1]+2*j-1; } } for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ cout<<setw(3)<<a[i][j]; }cout<<endl; } return 0; }