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)

a=str(input())
A={"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(A[a])