lists = []
for i in range(5):
	lists.append(input())

f_list = []
for i in lists:
	f_list.append(i[-1])

mins = 0
if not "0" in f_list:
    mins = int(min(f_list))
else:
    mins = int(sorted(set(f_list))[1])
sums = 0
for i in lists:
	sums += int((int(i)+9)/10)*10


print(sums-10+mins)