D=[]
for i in range(5):
  D.append(int(input()))

D_mod_max = 9
for i in range(5):
  if (D[i]%10 != 0) & (D[i]%10 < D_mod_max):
    D_remove = D[i]
    D_mod_max = D[i]%10
    
D.remove(D_remove)

sum=0
for i in range(len(D)):
  if D[i]%10 !=0:
    sum=sum+D[i]+(10-D[i]%10)
  else:
    sum=sum+D[i]

sum=sum+D_remove

print(sum)