Having trouble with the following C assignment:

You need to write a C function named move. The prototype is:

int move(char*, char*);

The function accepts 2 strings: the first is a string of text to process; the second is where the output will be placed. move() should move the first character to the end of the string, saving the new string in the second arg.

For example, the string "HELLO" should be changed to "ELLOH"

You may use the strlen() function; no other built-in fuctions should be used.