guess-the-function

Guess the function

Guess the function F.

Known values:

F("123")           => "07b432d25170b469b57095ca269bc202"
F("example")       => "335ea833e623b5e8e8176ed06d4a97a1"
F("Hello, world!") => "93897493c4b060acb45ad0bed6553dc6"
F("")              => "e7248fce8990089e402b00f89dc8d14d"
F("@#$%!")         => "9d986675f0edbed1494f279eb74620e3"
F("Привет, мир!")  => ""
F("test string\n") => ""