kvintovskiy #include <iostream>
int main()
{
float x1, y1, x2, y2, x3, y3, x4, y4;
cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;

if (x1 == x2 )
 x4 = x3;
else if (x1 == x3)
 x4 = x2;
else x4 = x1;

if (y1 == y2 )
 y4 = y3;
else if (y1 == y3)
 y4 = y2;
else y4 = y1;

cout << x4  << ", " << y4;
return 0;

}