import std.stdio;

void main() {
    int x1, y1, x2, y2;
    readf(" %s %s %s %s", &x1, &y1, &x2, &y2);

    auto xd = x2 - x1;
    auto yd = y2 - y1;

    writefln("%d, %d, %d, %d", x2 - yd, y2 + xd, x1 - yd, y1 + xd);
}
