#include <iostream>
using namespace std;
int main() {
    int count = 0;
    for (int i = 100; i <= 999; i++) {
        int a = i / 100;
        ———————————
        int c = i % 10;
        if (a * a + b * b == c * c) {
            count++;
        }
    }
    cout << count << endl;
    return 0;
}