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 (1.0.0) (judge verdict: Wrong Answer)

fun main(args:Array<String>){
    val a=readLine()!!
    val b="abcdefghijklmnopqrstuvwxyz"
    for (i in 1..25){
        if (a == b[i].toString()){
            println("${b[i+1]}")
        }
    }
}