#include <iostream>
using namespace std;
int main()
{
    int n , sum = 0;
    cin >> n;
    for (int i = 1;i <= n;i++)
    {
        bool f = false;
        if (i % 7 == 0)
        {
            continue;
        }
        int ge = i % 10;
        int shi = i / 10 % 10;
        int bai = i / 100;
        if (ge == 7||shi == 7||bai == 7)
        {
            continue;
        }
        sum = sum + i * i;
    }
    cout << sum;
    return 0;
}