#include <bits/stdc++.h>
#include <climits>
#define ULL_INT unsigned long long int
using namespace std;

vector<int> bigMultiply(vector<int> n, int k) {
    vector<int> r;
    int carry = 0;
    for (int i=0; i<n.size(); i++) {
        int t = k * n[i] + carry;
        r.push_back(t%10);
        carry = t/10;
    }
    while (carry != 0) {
        r.push_back(carry%10);
        carry = carry/10;
    }
    
    return r;
}

void printV(vector<int> number) {
    for (int i=0; i<number.size(); i++)
        cout << number[i];
    cout << endl;
}

vector<int> _toVector(long long int num) {
    vector<int> result;
    int tmp = num;
    while (tmp != 0) {
        result.push_back(tmp%10);
        tmp = tmp/10;
    }
    return result;
}
void sumOfGroup(int k) {
    vector<int> r;
    // long long int a = k * k;
    vector<int> num = _toVector(k);
    vector<int> sqr = bigMultiply(num, k);
    r = bigMultiply(sqr, k);
   
    // Print vector in reverse
    std::vector<int>::reverse_iterator rit = r.rbegin();
    for (; rit!= r.rend(); ++rit)
        cout << *rit;
   
}

int main() {
    int k;
    cin >> k;
    sumOfGroup(k);
    // cout << answer << endl;
    return 0;
}