#include <iostream>
#include <functional>

std::function<int(int)> repeatN(std::function<int(int)> func, int N) {
    if (N == 1) { return func; }
    else {
        std::function<int(int)> repeated = [func, N](int x) { return func(repeatN(func, N - 1)(x));  };
        return repeated;
    }
}

int AddOne(int arg) { return arg + 1; }

int main()
{
    std::cout << repeatN(AddOne, 5)(3);
    return 0;
}