#include <bits/stdc++.h>
using namespace std;

int main(){
  int a[4]{};
  for (int i = 0; i < 4; i++){
    int mx = -1, r = 0;
    for (int j = 0; j <= 9; j++){
      a[i] = j;
      for (int k = 0; k < 4; k++){
        cout << a[k] << "\n "[k < 3];
      }
      int x, y;
      cin >> x >> y;
      if (x == 4) return 0;
      if (mx < x){
        mx = x;
        r = j;
      }
    }
    a[i] = r;
  }
}