#38
A = int(input())
B = int(input())
C = int(input())
D = int(input())
E = int(input())
last = 9
time = 0
cou = 0
#l = [[A,"A"],[B,"B"],[C,"C"],[D,"D"],[E,"E"]]
l = [A,B,C,D,E]
for i in l:
    if i%10 !=0 :
        if last%10 >= i%10:
            last = i

l.remove(last)
l.append(last)
for i in range(5):
    time += l[i]
    if i == 4:
        break
    while time%10 != 0:
        time += 1
        
    
print(time)
        