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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <bits/stdc++.h>

using namespace std;

#define ll long long
int m = 1000000007;

ll bin_pow(int a, int pow) {
    if (pow == 1) return a % m;
    if (pow % 2 == 0) {
        ll tmp = bin_pow(a, pow / 2) % m;
        return tmp * tmp % m;
    }
    return (a % m) * (bin_pow(a, pow - 1) % m) % m;
}

int main() {
    cin.tie();
    ios_base::sync_with_stdio(false);

    char x;
    cin >> x;

    cout << (char) (x + 1);
    return 0;
}