#include <iostream>
using namespace std;

int main() {
    int n;
    int a;
    int temp = 0;
    cin >> n;
    for(a = 1;a <= n;a++){
        if((a % 7 != 0) && (a % 10 != 7) && (a / 10 != 7)){
            temp = temp + a*a;
        }
    }
    cout << temp << endl;
    return 0;
}
// 64 位输出请用 printf("%lld")