import itertools

A = int(input())
B = int(input())
C = int(input())
D = int(input())
E = int(input())
array = [A, B, C, D, E]
min_time= float('inf')

for i in list(itertools.permutations(array)):
    tmp = i[0] + (10 - i[0]%10)
    tmp += i[1] + (10 - i[1]%10)
    tmp += i[2] + (10 - i[2]%10)
    tmp += i[3] + (10 - i[3]%10)
    tmp += i[4]
    
    min_time = min(min_time, tmp)
    
print(min_time)