template<typename IBegin, typename IEnd = IBegin>
class Range {
private:
    IBegin begin_iterator;
    IEnd end_iterator;

public:
    constexpr Range(IBegin begin_, IEnd end_) noexcept : begin_iterator(std::move(begin_)), end_iterator(std::move(end_)) {}

    constexpr IBegin begin() const noexcept { return cbegin(); }
    constexpr IEnd end() const noexcept { return cend(); }

    constexpr IBegin cbegin() const noexcept { return begin_iterator; }
    constexpr IEnd cend() const noexcept { return end_iterator; }
};