下面程序的输出为( )。

#include <iostream>using namespace std; int main() {    int cnt = 0;    for (int a = 1; a <= 10; a++)        for (int b = 1; b <= 10; b++)            for (int h = 1; h <= 10; h++)                if ((a + b) * h == 20)                    cnt++;    cout << cnt << endl;    return 0;}
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