#include <iostream>
#include <string>

using namespace std;

int HH (string a) {
    int p = 31;
    int len, h = 0;
    len = length(a);
    for (int i = 1; i < len; ++i) {
        for (int k = 1; k < i; k++)
            p *= p;
        h += int(a[i]) * p;
    }
    h += int(a[0]);
    return h;
}

int main()
{
    /*int n;
    cin >> n;
    for (int i = 0; i < n; ++i)
        cin >> a[i];*/
    string str;
    cin >> str;
    cout << HH(str);
    return 0;
}