a = list(map(int,input().split()))
ans = 0
tmp = 10
for i in range(5):
    if(a[i]%10 == 0):
        ans += a[i]
    else:
        ans += (a//10)*10+10
        tmp = min(tmp,a%10)
if tmp == 10:
    print(ans)
else:
    print(ans+tmp)