Problem:
Score : 100 points

Problem Statement

Given is a lowercase English letter C that is not z. Print the letter that follows C in alphabetical order.

Constraints

C is a lowercase English letter that is not z.

Input

Input is given from Standard Input in the following format:

C

Output

Print the letter that follows C in alphabetical order.

Sample Input 1

a

Sample Output 1

b

a is followed by b.

Sample Input 2

y

Sample Output 2

z

y is followed by z.

Solution in Python (3.4.3) (judge verdict: Accepted)

C = input()

alfa = {'a': 'b', 'b': 'c', 'c': 'd', 'd': 'e', 'e': 'f', 'f': 'g', 'g': 'h', 'h': 'i', 'i': 'j', 'j': 'k', 'k': 'l', 'l': 'm',
        'm': 'n', 'n': 'o', 'o': 'p', 'p': 'q', 'q': 'r', 'r': 's', 's': 't', 't': 'u', 'u': 'v', 'v': 'w', 'w': 'x', 'x': 'y', 'y': 'z'}
print(alfa[C])