def reverse_string(input_string):
    reversed_string = ""
    for i in range(len(input_string) - 1, -1, -1):
        reversed_string += input_string[i]
    return reversed_string

# Prompt the user to enter a string
input_string = input("Enter a string: ")

# Reverse the string
reversed_string = reverse_string(input_string)

# Print the reversed string
print("Reversed string:", reversed_string)