# Help Bob Out!

Posted: 2 Jun, 2021
Difficulty: Easy

## PROBLEM STATEMENT

#### 4) The last six characters should be alphanumeric.

##### Input Format:
``````The first line contains an Integer 'T' which denotes the number of test cases or queries to be run. Then the test cases follow.

The first line of each test case consists of a string ‘S’ which denotes the IFSC Code.
``````
##### Output Format:
``````For each test case print ‘True’ if the IFSC code is valid otherwise print ‘False’.

Output for each test case will be printed in a separate line.
``````
##### Note:
``````You are not required to print anything, it has already been taken care of. Just implement the function.
``````
##### Constraints:
``````1 <= T <= 10
1 <= |S| <= 100

Time Limit: 1 sec
`````` Approach 1

To check whether the string is a valid IFSC Code or not we can check every character of the string explicitly and check whether the string is in the correct format or not.

Algorithm:-

1. If the length of the string is not equal to 11, return False.
2. Else, iterate from the first index to the fourth index.
1. Check whether the ASCII values of the characters lie between 65 - 90. If not, return False.
3. If yes, check whether the fifth character is 0 or not. If No return False.
4. If yes, iterate from the fourth index to the eleventh index.
1. Check whether the ASCII values of the characters lie between 65 - 90 or 48 - 57. If not, return False. If yes, return True.