B
# -*- coding: utf-8 -*-
box = []
for i in range(0,5):
    box.append(int(input()))
amari = []
for i in range(0,5):
    amari.append(box[i] % 10)
for i in range(0,5):
    if amari[i] ==0:
        amari[i] = 100
    else:
        pass
sumtime = 0
box4 = box[4]
boxmin = box[amari.index(min(amari))]
box[amari.index(min(amari))] = box4 
box[4] = boxmin
for i in range(0,5):
    if i ==4:
        sumtime += box[i]
    elif box[i]%10==0:
        sumtime +=box[i]
    else:
        sumtime += (box[i] // 10)*10+10
print(sumtime)