#include <iostream>
#include <string>

int main()
{
    constexpr char seperators[] = " ,.\t" ;

    const std::string full_name = "Nicolai M. Josuttis" ;
    std::cout << "full name: " << full_name << '\n' ;

    auto pos = full_name.find_first_of(seperators) ;
    if( pos != std::string::npos )
    {
        const std::string first_name = full_name.substr(0,pos) ;
        std::cout << "first name: " << first_name << '\n' ;
    }

    pos = full_name.find_last_of(seperators) ;
    if( pos != std::string::npos )
    {
        const std::string last_name = full_name.substr(pos+1) ;
        std::cout << "last name: " << last_name << '\n' ;
    }
}