#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n, flag = 0, sum = 0;
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        flag = 0;
        int x = i;
        while (x > 0)
        {
            if (x % 10 == 7)
            {
                flag = 1; 
                break;
            }
            x /= 10;
        }
        if (i % 7 != 0 && flag == 0)
        { 
            sum += i * i;
        }
    }
    cout << sum;
return 0;
}