#nyuuryoku
food=[]
for i in range (5):
  food.append(int(input()))
time = 0

#1keta toru 10 watte amari dasu
#amari wo dasu
machi = []
for i in range (5):
  if food[i]%10 == 0:
    time += food[i]
  else:
    time += food[i]+(10-(food[i]%10))
    machi.append(10-(food[i]%10)) 
    
print(time-max(machi))  
    