#include <iostream>
using namespace std;

int dist(int a, int b) {return a*a + b*b;}

int solve(int x, int y, int maxx, int maxy, int maxz) {
  return dist(x, y+maxz)<? dist(y, x+maxz) <?
    dist(maxx+y, maxx+maxz-x) <? dist(maxy+x, maxy+maxz-y);
}

int main() {
  int x, y, z, maxx, maxy, maxz;
  while (cin >> maxx >> maxy >> maxz >> x >> y >> z) {
    if (x + y + z + maxx + maxy + maxz == 0)
      return 0;
    else if (x == 0 || y == 0 || z == 0)
      cout << (x*x + y*y + z*z) << endl;
    else if (x == maxx)
      cout << solve(y, z, maxy, maxz, maxx) << endl;
    else if (y == maxy)
      cout << solve(x, z, maxx, maxz, maxy) << endl;
    else
      cout << solve(x, y, maxx, maxy, maxz) << endl;
  }
}