array = [int(input()) for i in range(5)]
array_sub = [i % 10 for i in array]
new_lst = [i for i in array_sub if i != 0]
minimum = min(new_lst)
sum = 0
for i in array:
  if (i % 10 == minimum):
    sum += i
  else 
  	sum += i + (10 - i % 10)
print(sum)
 
