Untitled

#include <iostream>
#include <math.h>
using namespace std;
int main()
{
	int a, b, c = 0;
	cin >> a >> b;
	for (int i = a; i < b+1; i++)
	{
		if (i % 10 == (i / 10) % 10) c += 1;
	}
	cout << c;
}