from sys import stdin

x = []
x.append(int(stdin.readline().rstrip()))
x.append(int(stdin.readline().rstrip()))
x.append(int(stdin.readline().rstrip()))
x.append(int(stdin.readline().rstrip()))
x.append(int(stdin.readline().rstrip()))

time = []
min = 0
for i in range(0,5):
    time.append(x[i] - (x[i]%10) + 10)
    if ((x[min]-1) % 10) > ((x[i]-1) % 10):
        min = i

time[min] = x[min]

sum_time = 0
for i in range(0,5):
    sum_time += time[i]

print(sum_time)