public class CountTheDigit {
	public static int nbDig(int n, int d) {
    String number = "";
    int count=0;
    for(int i=0; i<n; i++) {
			number=(i*i)+"";
			count +=  number.length() - number.replace(d+"", "").length();
	  }
  	return count;
  }
}