a=int(input())
b=int(input())
c=int(input())
d=int(input())
e=int(input())
 
min_list = [a,b,c,d,e]
 
minute = 0
for i in range(len(min_list)-1):
    if (min_list[i]%10)==0:
        minute += min_list[i]
    else:
        minute = 10-(min_list[i]%10)+min_list[i]
 
minute += min_list[4]
 
print(minute)