import sys
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def II(): return int(sys.stdin.readline())
def LS(): return sys.stdin.readline().split()
sys.setrecursionlimit(10**7)
INF = 10 ** 18
MOD = 10 ** 9 + 7
def LI_(): return [int(x) - 1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def SI(): return input()
YN = lambda b: print('YES') if b else print('NO')
yn = lambda b: print('Yes') if b else print('No')

li = []
for i in range(5):
    li.append(II())

sum_ = 0
li_mod = []
for i in li:
    if i%10 == 0:
        sum_ += i
    else:
        sum_ += ((i//10)+1)*10
        li_mod.append(10-i%10)
sum_ -= max(li_mod)

print(sum_)
