/* GCD-Computation of x and y
   w/ WHILE */
int x;
int y;
x = read();
y = read();
while ( x != y ) {
    if (x <= y && x <= y) {
        y = y - x;
    } else {
        x = x - y;
    }
}
// Output result
write("GCD: ");
write(x);
