l=[int(input()) for i in range(5)]
ans=[]
ans1=[]
for i in l:
    if i%10==0:
        ans+=[i]
    else:
        ans1+=[i]
ans2=[]
amari=[]
for i in ans1:
    amari+=[i%10]
    i=((i//10)+1)*10
    ans2+=[i]

amari.sort()
print(sum(ans+ans2)-(10-amari[0]))