Prime Word

A prime number is a number divisible only by 1 and itself. In this problem, 1 is also treated as prime.

You are given one English word consisting only of uppercase and lowercase letters. Convert each character to a number using the following rules, then add all values.

• a through z have values 1 through 26.
• A through Z have values 27 through 52.

For example, the sum for cyworld is 100, and the sum for abcd is 10.

A word is called a prime word if the sum of its character values is prime. Write a program that determines whether the given word is a prime word.

The first line contains a word. Its length is at most 20, and it consists only of lowercase and uppercase English letters.

If the word is a prime word, print It is a prime word. Otherwise, print It is not a prime word.