#include <iostream>
#include <cmath>

int main() {
    unsigned int N;
    std::cin >> N;
    unsigned int sum = 0;
    for(unsigned int i = 2; i <= 7 * std::pow(9, 6); i++) {
        unsigned int add = 0;
        unsigned int reduce = i;
        while(reduce > 0) {
            unsigned int digit = reduce % 10;
            reduce /= 10;
            unsigned int power = 1;
            for(unsigned int j = 1; j <= N; j++) {
                power *= digit;
            }
            add += power;
        }

        if(add == i) {
            sum += i;
        }
    }
    std::cout << sum << std::endl;
    return 0;
}