#include <iostream>
#include <Windows.h>

using namespace std;

int main() {

    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);

    char line[100];

    cout << "Введите строку: ";
    gets_s(line);

    int m, n;

    cout << "Введите m: ";
    cin >> m;
    cout << "Введите n: ";
    cin >> n;

    char* result = new char[n - m + 2];

    int k = 0;
    for (int i = m; i <= n; i++, k++) {
        result[k] = line[i];
    }
    result[k] = '\0';

    cout << result << endl;
    delete[] result;
}