下面程序的输出为：

#include <iostream>
using namespace std;

int main() {
  int cnt = 0;
  for (int x = 0; x <= 10; x++)
    for (int y = 0; y <= 10; y++)
      for (int z = 0; z <= 10; z++)
        if (x + y + z == 15)
          cnt++;
  cout << cnt << endl;
  return 0;
}