a=int(input())
b=int(input())
c=int(input())
d=int(input())
e=int(input())
 
min_list = [a,b,c,d,e]
min_q = [(a%10),(b%10),(c%10),(d%10),(e%10)]
q_min = min(min_q)
min_index = min_q.index(q_min)
new_min = min_list.pop(min_index)

minute = 0
for i in range(len(min_list)):
    if (min_list[i]%10)==0:
        minute += min_list[i]
    else:
        minute = 10-(min_list[i]%10)+min_list[i]
 
minute += min_list[min_index]
 
print(minute)