#include <iostream>
using namespace std;

int mod(string num, int a)
{
    int res = 0;
    for (int i = 0; i < num.length(); i++)
        res = (res * 10 + (int)num[i] - '0') % a;
 
    return res;
}
 

int main()
{
    string num = "888666554444333322131400";
    cout << mod(num, 97);
    return 0;
}