ls = []

for i in range(5):
    ls.append(int(input()))
sum = 0
ls1 = []
for i in range(5):
    if ls[i] % 10 == 0:
        sum += ls[i]
    else:
        ls1.append(10 - ls[i] % 10)
        sum += (ls[i] // 10 + 1 )* 10
#print(ls1)
print(sum - max(ls1))
