#include<stdio.h> int main() { int n, x; scanf("%d %d", &n, &x); int arr[1000] = { 0 }; int i = 0; int count = 0; for (i = 0; i <= n; i++) { arr[i] = i ; int m = arr[i]; while (m) { if (m % 10 == x) count++; m = m / 10; } } printf("%d", count); return 0; }