Example input: 6599102864344140750
Example output: nil01

how to run :

1.  g++ main.cpp -o main

2.  ./main 6599102864344140750 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz


output : password cracked : nil01 

change parameter of crack function to check for different passwords.
I have give parameter for crack function as nil01 
crack("change here",chars);