A=[]

for i in range(5):
    A.append(int(input()))

m=10

for i in range(5):
    if A[i]%10<m and A[i]%10!=0:
        m=A[i]%10
        s=i

su=0

for i in range(5):
    if i==s:
        su+=A[i]
    elif A[i]%10!=0:
        su+=(A[i]//10+1)*10
    else:
        su+=A[i]
print(su)
