#include <bits/stdc++.h>
using namespace std;
long a, b, c;
long x, y, z;
int main() {
  cin >> a >> b >> c;
  x = (c - a + b) / 2;
  y = c - x;
  z = b - x;
  if (x < 0 || y < 0 || z < 0 || (c - a + b) % 2)
    cout << "Impossible";
  else
    cout << z << " " << x << " " << y;
  return 0;
}
