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 C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include "stdio.h"
#include "stdarg.h"
#include "math.h"
#include "limits.h"

#define SWAP(type,a,b) do{type c=a;a=b;b=c;}while(0)
#define MAX(a,b) (((a)>(b))?(a):(b))
#define MIN(a,b) (((a)<(b))?(a):(b))
#define DEBUG(format,a) do{printf(#a" : "#format,a);}while(0)


int main() {
	int a;
	scanf("%d", &a);
	printf("%c", a+1);
	return 0;
}