import math
L = [input() for _ in range(5)]
lm = 10
v = 0
for l in L:
  if int(l[-1])<lm and l[-1]!='0':
    lm = int(l[-1])
    v = int(l)
t = 0
L.remove(str(v))
for l in L:
  t += math.ceil(int(l)/10)*10
print(t + v)