#include <stdio.h>int foo(int x, int y, int q){if ((x <= 0 && (y <= 0))return q;if (x <= 0)return foo(x, y - q, q);if (y <= 0)return foo(x - q, y, q);return foo (x, y - q, q) + foo(x - q, y, q);}int main()(int r = foo(15, 15, 10);printf("%d", r);return 0;}