A=list(int(input()) for _ in range(5))
B=[]
C=[]
for i in A:
    if i%10!=0:
        B.append(i%10)
        C.append((i//10+1)*10)
    else:
        C.append(i)
if B==True:
    c=10-min(B)
else:
    c=0
print(sum(C)-c)