reverse string

To reverse a string, you can iterate through the characters of the string from the last to the first and append them to a new string. Here's an example in Python:

def reverse_string(input_string):
    reversed_string = ""
    for char in input_string[::-1]:
        reversed_string += char
    return reversed_string

input_string = "Hello, World!"
reversed_string = reverse_string(input_string)
print(reversed_string)

Output: `!dlroW ,olleH`