test.cpp

#include <string>
#include <iostream>

int main()
{
    std::string s;
    std::getline(std::cin, s);   // Should check that worked.

    int q;
    std::cin >> q;

    for (int loop = 0; loop < q; ++loop) {
        int a, b, l;
        std::cin >> a >> b >> l;

        std::string_view    view_a(s);
        view_a.remove_prefix(a);
        view_a.remove_suffix(std::size(view_a) - l);

        std::string_view    view_b(s);
        view_b.remove_prefix(b);
        view_b.remove_suffix(std::size(view_b) - l);

        std::cout << ((view_a == view_b) ? "Yes" : " No") << "\n";
    }
}