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 Kotlin (1.3.71) (judge verdict: Accepted)

fun main (args:Array<String>){
    val c = readLine()!!
    val alpha = "abcdefghijklmnopqrstuvwxyz"
    val alphaList = alpha.split("")
    val nextAlpha = alphaList.indexOf(c) + 1
    print(alphaList[nextAlpha])
}