$ cat main.cpp
#include <iostream>
#include <cstdint>

// I'm going to define my own shorter integral types!
using U8 = uint8_t; // unsigned char
using U64 = uint64_t; // unsigned long long

// This was something new I learned the other week :D
// https://en.cppreference.com/w/cpp/language/user_literal
consteval U8 operator ""_uc(const U64 value) {
  return static_cast<U8>(value);
}

int main() {
  std::cout
    << 67_uc
    << 43_uc
    << 43_uc
    << " is awesome! See you all next year!"
    << std::endl;
  return EXIT_SUCCESS;
}

$ g++ main.cpp -o main.exe && ./main.exe
C++ is awesome! See you all next year!