#include <iostream>

int main()
{

    auto foo = [](int i = 6) { return i + 1; };

    auto bar = [](int x, int y) {
        int s = x + y;

        for(int i : {1, 2, 3})
        {
            s += i;
        }

        return s;
    };

    std::cout << foo() << " " << bar(1, 2) << "\n";
}