Reverse a String with a Loop

Summary

Learn to reverse the characters in a string using iteration.

Problem statement

Given a string s, return a new string that contains the characters of s in reverse order. Use iteration (for loop or while loop) to traverse the string and build the reversed result. Do not use built-in slicing reversal (e.g., s[::-1]) in the starter exercise; learners should practice loop-based construction.

Task

Write a function that returns the input string with characters in reverse order.

Examples

Input format

A single function call reverse_string(s) where s is a string.

Output format

Return a string containing the characters of s in reverse order.

Constraints

0 <= len(s) <= 1000. The string may include spaces, punctuation, and Unicode characters.

Samples