#include <bits/stdc++.h>
using namespace std;
int main() {
  int r1, r2, c1, c2, d1, d2;
  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 && b + c == d2 && a != b && a != c && a != d &&
              b != c && b != d && c != d) {
            cout << a << " " << b << endl << c << " " << d << endl;
            return 0;
          }
        }
  cout << -1 << endl;
  return 0;
}
