#include<iostream>
using namespace std;
int main()
{
    int n;
    int luckynum;
    int result=0;
    cin>>n;
    cin>>luckynum;
    for(int i=1;i<=n;i++)
    {
        if(i%10==luckynum)
        {
            result++;
        }
        if(i/10%10==luckynum)
        {
            result++;
        }
        if(i/100%10==luckynum)
        {
            result++;
        }
    }
    cout<<result;
    return 0;
}