a = int(input(''))
b = int(input(''))
c = int(input(''))
d = int(input(''))
e = int(input(''))
list_i = [a,b,c,d,e]
 
min_n = list_i[0] % 10
v = 0
count = 0
 
for i in range(len(list_i)):
 if list_i[i] % 10 < min_n and list_i[i] % 10 != 0:
  count = i
 
for i in range(len(list_i)):
 if i == count or list_i[i] % 10 == 0:
  v = v + list_i[i]
 else:
  v = v + list_i[i] + ( 10 - list_i[i] % 10)
 
print v