A =int( input())
B =int( input())
C =int( input())
D = int(input())
E = int(input())

li = [A,B,C,D,E]
li_nonzero=[]

for x in li:
    if x % 10 != 0:
        li_nonzero.append(x)

z = li_nonzero[0]%10
for y in li_nonzero:
    if y % 10 <= z:
        z = y%10
        last_menu = y
        
li.remove(last_menu)
sum_time = 0
for menu in li:
    if menu % 10 != 0:
        sum_time = sum_time +( (menu//10)*10+10)
    else:
        sum_time = sum_time +( (menu//10)*10+0)
        
    
print(sum_time+last_menu)
    