#include <vector>

template<auto>
auto f(auto, auto) -> void { }

constexpr int a = 1;

main: () -> int = {
    v : std::vector<int> = ( 1, 2, 3 );
    std::cout << (1+2) * (3+v[0]);
    f<(1>2)>(3,4);
    f< a+a >(5,6);
}