a=int(input())
b=int(input())
c=int(input())
d=int(input())
e=int(input())
if a%10==0:
    a_q=a
else:
    a_q=(a//10+1)*10
if b%10==0:
    b_q=b
else:
    b_q=(b//10+1)*10
if c%10==0:
    c_q=c
else:
    c_q=(c//10+1)*10
if d%10==0:
    d_q=d
else:
    d_q=(d//10+1)*10
if e%10==0:
    e_q=e
else:
    e_q=(e//10+1)*10

r=[i for i in [a%10,b%10,c%10,d%10,e%10]  if i%10!=0]
r_min=min(r)

ans=a_q+b_q+c_q+d_q+e_q-10+r_min
print(ans)