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 Go (1.6) (judge verdict: Wrong Answer)

package main

import (
    "fmt"
)

func main() {
    
    var (a int; b int; aveint int; ave float64)
//    a = 7
//    b = 4
    fmt.Scan(&a, &b)
    
    ave = (float64(a) + float64(b))/2
    aveint = int(ave) + 1

    fmt.Println(aveint)
}