#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int t;
  t = 1;
  while (t--) {
    long long a, b, c, i, j, k;
    cin >> a >> b >> c;
    i = (a - c + b) / 2;
    j = b - i;
    k = c - j;
    if (i >= 0 && j >= 0 && k >= 0 && 2 * (i + j + k) == a + b + c)
      cout << i << " " << j << " " << k;
    else
      cout << "Impossible";
  }
  cerr << "Time taken : " << (float)clock() / CLOCKS_PER_SEC << " secs" << endl;
  return 0;
}
