Problem:
Score : 100 points

Problem Statement

You are given two positive integers a and b.
Let x be the average of a and b.
Print x rounded up to the nearest integer.

Constraints

a and b are integers.

1 \leq a, b \leq 100

Input

Input is given from Standard Input in the following format:

a b

Output

Print x rounded up to the nearest integer.

Sample Input 1

1 3

Sample Output 1

2

The average of 1 and 3 is 2.0, and it will be rounded up to the nearest integer, 2.

Sample Input 2

7 4

Sample Output 2

6

The average of 7 and 4 is 5.5, and it will be rounded up to the nearest integer, 6.

Sample Input 3

5 5

Sample Output 3

5

Solution in Python (3.8.2) (judge verdict: Runtime Error)

s=list(input())
t=list(input())

s.sort()
t.sort()
t.reverse()

for i in range(len(s)):
  S=s[i]
for i in range(len(t)):
  T=t[i]
if S<=T:
  print('No')
elif S==T:
  print('No')
else:
  print('Yes')