# coding: UTF-8

def num(n):
	kf = 0
	for i in range(2,14):
		kf += int(n / 10**i) * (10**(i-2))
		if (n % 10**i) >= 12 * 10**(i-2):
			kf += min(10**(i-2),(n % 10**i)-(12 * 10**(i-2)-1))
	if n >=2 :
		kf += 1
	if n >= 22 :
		kf += 1
	for i in range(1,12):
		kf += max(min(10**i,int((n - 2 * 10**(i+1) + 8)/10)),0)
	return kf

l = input().split()
fir = int(l[0])
las = int(l[1])

k = num(las) - num(fir-1)
s = str(fir)
if s[0] == '2' and s[len(s)-1] == '2':
	k -= 1

print(k)