#include <iostream>
using namespace std;
int main()
{
int mc[10][10], n, i, j;
cout<<"dimensiunea? ";
cin>>n;
for(i=1; i<=n; i++)
for(j=1; j<=n; j++)
mc[i][j]=i*10+j;
cout<<endl<<endl;
for(i=1; i<=n; i++){
for(j=1; j<=n; j++)
cout<<mc[i][j]<<" ";
cout<<endl;
}
cout<<endl;
cout<<"diagonala principala:";
cout<<endl<<endl;
for(i=1; i<=n; i++)
cout<<mc[i][i]<<" ";
cout<<endl<<endl;
cout<<"diagonala secundara:";
cout<<endl<<endl;
for(i=1; i<=n; i++)
cout<<mc[i][n-i+1]<<" ";
cout<<endl<<endl;
return 0;
}