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how do u go to the end of the string ???

The remaining characters I was talking about was in the middle of the string ...... =)

eg.
Input = hello
value = 4
output = elloh

This is y I want to know how 2 get to the end of the string...

I would like to know how do u get to the end of the string, copy the remainding characters then pasting it to the front of the string without overwriting it. Thanks =)

I would like to know how to write a function that rotates the line of text.

Eg. Input
line = darude
n = 3

Output
udedar

Any help is appreciated !!!