import math
dish = [int(input()) for _ in range(5)]
sm = 9
smin = 0
for item in dish:
  r = item % 10
  if 1 <= r <= 10:
    sm = min(sm, r)
    smin = item
ans = 0    
for cnt, item in enumerate(dish):
  if cnt == smin:
    ans += item
  else:
    ans += math.ceil(item)
print(ans)    