its102.pr.wk.05.07.num03

# define a function that reverse a string
# reverse_string()
def reverse_string(str1):
    rstr1 = ''
    index = len(str1)
    while index > 0:
        rstr1 += str1[index - 1]
        index = index - 1
    return rstr1


# initialize a string to be reverse
string = 'ralph'
# print the string
print("The string is: ", string)

# call function reverse_string() to reverse the string
print("The reverse of the string is: ", reverse_string(string))  # this will print the reverse of string 'ralph'