times = [int(input()) for _ in range(5)]
times1 = []
total = 0
for t in times:
  t1 = t % 10
  if t1 == 0:
    total += t
  else:
    times1.append(t1)
    total += (t//10 + 1) * 10
if len(times) >= 1:
    total = total + min(times1) - 10
print(total)