import  math

import numpy as np

arr = list(map(int, input().split()))

print((math.ceil(np.mean(arr))))
a, b = list(map(int, input().split()))

print((-(-(a+b)//2)))

import math
import numpy as np

arr = list(map(int, input().split()))
print((math.ceil(np.mean(arr))))

a, b = list(map(int, input().split()))
print((-(-(a + b) // 2)))

-import math -import numpy as np - -arr = list(map(int, input().split())) -print((math.ceil(np.mean(arr)))) +a, b = list(map(int, input().split())) +print((-(-(a + b) // 2)))