комба_N5

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#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
using namespace std;
vector <int> F(13,0);
int C(int n, int k) {
    return F[n] / (F[k] * F[n - k]);
}
int main()
{
    F[0] = 1;
    for (int i = 1; i < 13; ++i) {
        F[i] = F[i - 1] * i;
    }
    vector <int> v = {C(9,0) * C(9, 4), 3 * C(9, 1) * C(8, 4), 3 * C(9, 2) * C(7, 4), C(9, 3) * C(6, 4)};
    int ans = 0;
    for (int i: v) ans += i;
    cout << ans << "\n";
    cout << C(8, 3) * C(9, 4);
}