# B - Five Dishes

n = []
for _ in range(5):
    n.append(int(input()))

mini = 10
for y, x in enumerate(n):
    rest = x % 10 
    if rest != 0:
        if rest < mini:
            mini = rest
            mini_num = y 
            
time = n.pop(mini_num)
for x in n:
    if x % 10 != 0:
        item = x + (10-x%10)
        time += item
    else:
        item = x
        time += item
    
print(time)