#include <iostream>
#include <string>
using namespace std;

void print(char *chr, int start, int print_size)
{
    for (int i = start; i < start+print_size; i++)
        cout << chr[i];
    cout << endl;
}

int main()
{
    char *chr;
    chr = new char[200];
    cin >> chr;
    int a, b;
    cin >> a >> b;
    print(chr, a, b);
    delete[] chr;
    return 0;
}