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 Python (3.4.3) (judge verdict: Accepted)

alpha2num=lambda c:ord(c)-ord('a')+1

result=(alpha2num(input()))

if result==1:
    print('b')
elif result==2:
    print('c')
elif result==3:
    print('d')
elif result==4:
    print('e')
elif result==5:
    print('f')
elif result==6:
    print('g')
elif result==7:
    print('h')
elif result==8:
    print('i')
elif result==9:
    print('j')
elif result==10:
    print('k')
elif result==11:
    print('l')
elif result==12:
    print('m')
elif result==13:
    print('n')
elif result==14:
    print('o')
elif result==15:
    print('p')
elif result==16:
    print('q')
elif result==17:
    print('r')
elif result==18:
    print('s')
elif result==19:
    print('t')
elif result==20:
    print('u')
elif result==21:
    print('v')
elif result==22:
    print('w')
elif result==23:
    print('x')
elif result==24:
    print('y')
elif result==25:
    print('z')