#include<stdio.h>
#include<math.h>
#include<ctype.h>
#include<string.h>
#include<stdlib.h>
int found(int n, int x)
{
	int a = 0, y;
	while(1)
	{
		y = n % 10;
		n /= 10;
		if(x == y)
		{
			a++;
		}
		if(n == 0)
		{
			break;
		}
	}
	return a;
}
int main()
{
	int n, x, a = 0, i = 1;
	freopen("count2013.in", "r", stdin);
	freopen("count2013.out", "w", stdout);
	scanf("%d%d", &n, &x);
	for(i = 1; i <= n; i++)
	{
		a += found(i, x);
	}
	printf("%d\n", a);
	fclose(stdin);
	fclose(stdout);
	return 0;
}