Score : 100 points
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.
Input is given from Standard Input in the following format:
a b
Print x rounded up to the nearest integer.
1 3
2
The average of 1 and 3 is 2.0, and it will be rounded up to the nearest integer, 2.
7 4
6
The average of 7 and 4 is 5.5, and it will be rounded up to the nearest integer, 6.
5 5
5