#include <iostream>
using namespace std;
int main () {
    int i,j,n,m,br=0,x;
    cin>>n;
    cout<<" ";
    cin>>m;
    for (i=0;i<n;i++){
        for (j=0;j<m+4;j++) {
            cin >>x;
            
        }
    }
    cout <<"-1";
   return 0;
}