#include <iostream>

int main(int argc, char** argv)
{
    // alternative tokens are replaced during compilation
    // ALTERNATIVE      PRIMARY
    // <%               {
    // %>               }
    // <:               [
    // :>               ]
    // %:               #
    // %:%:             ##
    // and              &&
    // bitor            |
    // or               ||
    // xor              ^
    // compl            ~
    // bitand           &
    // and_eq           &=
    // or_eq            |=
    // xor_eq           ^=
    // not              !
    // not_eq           !=

    // you can't use these alternative tokes as variables names
    // int and = 3;
    
    if ( (argc > 1) and (argc < 3) )
    {
        std::cout << "argc == 2" << std::endl;
    }
    else if ( (argc > 3) or (argc < 1))
    {
        std::cout << "argc is less 1 or greater then 3" << std::endl;
    }
    else
    {
        std::cout << "argc == " << argc << std::endl;
    }

    return 0;
}