<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>
<Below this line, add a link to the EXACT exercise that you are stuck at.>
rev = ''
for i in range(len(text), 0, -1):
rev += text[i-1]
<In what way does your code behave incorrectly? Include ALL error messages.>
Please i want to get the understanding of 0, -1 in the range.
<What do you expect to happen instead?>```python
Replace this line with your code.
<do not remove the three backticks above>