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 Scala (2.11.7) (judge verdict: Accepted)

import java.util.Scanner

object Main extends App {
  val sc = new Scanner(System.in)
  val s  = sc.next

  val alphabet = "abcdefghijklmnopqrstuvwxyz"
  val nextAlphabet = "bcdefghijklmnopqrstuvwxyza"

  val res = nextAlphabet.charAt(alphabet.indexOf(s))

  println(res)


}