#include <iostream>
#include <map>
#include <string>
#include <cstdlib>
#include <algorithm>

using namespace std;

int main() {
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    string num;
    getline(cin, num);
    unsigned char byte = 0;
    uint64_t res = 0, tmp = 0;
    int cnt = 1;
    for (int i = 0; i < num.size(); ++i) {
        byte = num[i];
        byte ^= ((byte >> 7) << 7);
        tmp = byte;
        res |= (tmp << (7 * i));

    }
    cout << res << "\n";
    return 0;
}