import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.*;
import java.util.*;

public class ProblemC {

    public static int recycles(int a, int min, int max) {
	HashSet<Integer> history = new HashSet<Integer>();
	int count = 0;
	int size = ("" + a).length();
	int power = (int)Math.pow(10, size - 1);
	int value = a;
	history.add(a);
	for (int i = 0; i < size; i++) {
	    int digit = value % 10;
	    int next = value / 10 + digit * power;
	    if (history.contains(next)) {
		break;
	    } else if (digit != 0 && next > a && next >= min && next <= max) {
		count++;
	    }
	    value = next;
	    history.add(next);
	}
	return count;
    }

    public static void main(String[] args) throws Exception {
	Scanner input = new Scanner(System.in);
	int lines = Integer.parseInt(input.nextLine().trim());
	for (int i = 0; i < lines; i++) {
	    String[] tokens = input.nextLine().split(" ");
	    int A = Integer.parseInt(tokens[0].trim());
	    int B = Integer.parseInt(tokens[1].trim());
	    int total = 0;
	    for (int j = A; j <= B; j++) {
		total += recycles(j, A, B);
	    }
	    System.out.println("Case #" + (i+1) + ": " + total);
	}
    }

}