i = [int(input().strip()) for i in range(5)]

mod = 10
for s in range(5):
	tmp = i[s] % 10
	if tmp!=0:
		if mod > tmp:
			mod=tmp
			last=s
sum=0
for s in range(5):
  if(s!=last):
    tmp=i[s] // 10
    mod=i[s] % 10
    if mod >0:
      sum+=tmp + 1
    else:
      sum+=tmp
print(sum*10 +i[last])