Problem:
Score : 100 points

Problem Statement

How many hours do we have until New Year at M o'clock (24-hour notation) on 30th, December?

Constraints

1≤M≤23

M is an integer.

Input

Input is given from Standard Input in the following format:

M

Output

If we have x hours until New Year at M o'clock on 30th, December, print x.

Sample Input 1

21

Sample Output 1

27

We have 27 hours until New Year at 21 o'clock on 30th, December.

Sample Input 2

12

Sample Output 2

36

Solution in Python (3.4.3) (judge verdict: Runtime Error)

A,B = map(int,input().split())
S = input()

sliceA = S[0:A]
sliceB = S[A+1:A+B+1]

if sliceA.isdigit() and sliceB.isdigit() and S.find("-") == A and len(sliceA) == A and len(sliceB) == B:
    print("yes")
else:
    print("no")