A = []
for i in range(5):
  a = int(input())
  A.append(a)
B = []
for i in range(5):
  b = A[i]%10
  B.append(b)
C =[]
for i in range(5):
  if B[i] != 0:
    c = A[i]+10-B[i]
  else:
    c = A[i]
  C.append(c)
t = 0  
for i in range(5):
  t += C[i]
B.sort()
z = set(B)
if min(z) == 0:
  z.remove(0)
print(t-10+min(z))