Write a python program that will take a string as input from the user and will print the UPPERCASE letters only, if 3 consecutive UPPERCASE letters are found, otherwise it will print all the lowercase...

Extracted text: Write a python program that will take a string as input from the user and will print the UPPERCASE letters only, if 3 consecutive UPPERCASE letters are found, otherwise it will print all the lowercase letters only. We can assume that the string will always contain both UPPERCASE and lowercase letters. [You cannot use any built in functions except input(), print(), len(String), ord(String), chr(int)] Sample Input 1: This is CSE110 Sample Output 1: TCSE Explanation 1: The string that the user has given as input here 'This is CSE110' does have 3 consecutive UPPERCASE letters 'CSE' as we can see. Thus our program prints the UPPERCASE letters only which are 'TCSE'.