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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;
    }
	
}