#include <cstdio>
using namespace std;

int n,m,k;

struct puzel{
  int x;
  int y;
};

puzel pz[300];


void read(){
  scanf ("%d%d%d", &n, &m, &k);
  for ( int i = 0; i < k; i++ ){
      scanf ("%d%d", &pz[i].x,&pz[i].y);
  }
}


void solve(){

//  for ( int i = 0; i < n; i++ ){
//    for ( int j = 0; j < m; j++ ){
//      }
//  printf ( "%d\n",pleas);
//printf ( "%d\n",maxvagon);
//     }
 return;
}

int main(){
  freopen ( "puzzle.in", "r", stdin );
  freopen ( "puzzle.out", "w", stdout );
  read();
  solve();
  printf ("good\n");
}