#include <bits/stdc++.h>
using namespace std;
const int N = 105;
const double pi = 3.14159265359;
int r1, r2, c1, c2, d1, d2;
int main() {
  cin >> r1 >> r2 >> c1 >> c2 >> d1 >> d2;
  for (int a = 1; a <= 9; a++) {
    for (int b = 1; b <= 9; b++) {
      for (int c = 1; c <= 9; c++) {
        for (int d = 1; d <= 9; d++) {
          if (a + b == r1 && c + d == r2 && a + c == c1 && b + d == c2 &&
              a + d == d1 && c + b == d2 && a != b && a != c && a != d &&
              b != c && b != d && c != d) {
            cout << a << ' ' << b << endl << c << ' ' << d;
            return 0;
          }
        }
      }
    }
  }
  cout << -1;
  return 0;
}
