import math
dishes = [int(input()) for _ in range(5)]
lead_times = [int(math.ceil(t/10))*10 - t in dishes]
max_idx = lead_times.index(max(lead_times))
result = 0
for i in range(5):
  result += dishes[i]
  if i != max_idx:
    result += lead_times[i]
print(result)