```
std::string str_a = "Hello World";
std::string str_b = "Hello ";

```

If string matches from beginning, remove it or return it in a new string with result, doesn't matter. Result should then be "World".

Whats the most stupid and simplest way to this with [c++](/questions/tagged/c%2b%2b "show questions tagged 'c++'") ? One liner is preferred. **Performance is **NOT** a concern.** `std` is preferred, but [boost](/questions/tagged/boost "show questions tagged 'boost'") is also an option.