#include <iostream>
using namespace std;

int main() {

    char str[30] = { 0 };
    cin.getline(str, sizeof(str));

    int m;
    cin >> m;

    // 从第 m 个字符开始复制剩余字符串
    for (char *p = str+m-1; (*p) != '\0'; p++)
        cout << *p;
    return 0;
}