Whether the input is a palidrome or not

Question

So, i am writing a code to check whether the entered string is a palindrome or not, i have written the following code, but its not working properly, for e.g, if i input "race" it still says TRUE, although it should say FALSE, Please help. This is the code

string = input("Please enter any word: ")
a = 0
string_length = len(string)
for string_index in range(string_length-1, -1, -1):
    character = string[string_index]
    if string[a] == character:
        a = a + 1
        b = "TRUE"
    else:
        b = "FALSE"
print(b) 

Answer 1

The correct code:

a = 0
string_length = len(string)
for string_index in range(string_length-1, -1, -1):
    character = string[string_index]
    if string[a] == character:
        a = a + 1
        b = "TRUE"
    else:
        b = "FALSE"
        break;  # this line was missing
print(b)