l = [int(input()) for i in range(5)]
time = 0
for v in l:
  if v %10 == 0:
    time += v
    l.remove(v)
if l == []:
  print(time)
  return
m = min(list(map(lambda x:x%10,l)))
find_min = False
for v in l:
  if v %10 == m && not find_min:
    time += v
  else:
    time += calc_time(v)
print(time)

def calc_time(t):
  return (int(t/10)+1 )*10