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.*;
import java.math.*;
/** @author Samuel Ahn */

public class C {
    public static void main(String args[]) throws Exception {
	Scanner in = new Scanner(System.in);
	int T = in.nextInt();
	for (int i = 1; i <= T; i++) {
	    int A = in.nextInt();
	    int B = in.nextInt();
		int sum = 0;

	    for (int n = A; n < B; n++) {
		String x = Integer.toString(n);
		ArrayList<Integer> list = new ArrayList<Integer>();
		for (int j = 1; j < x.length(); j++) {
		    String a = x.substring(0, j);
		    String b = x.substring(j);
		    int tmp = Integer.parseInt(b + a);
		    if ((tmp > n) && (tmp <= B) && (!list.contains(tmp))) {
			sum++;
			list.add(tmp);
			//break;
		    }
		}
	    

	    }
	    System.out.printf("Case #%d: %d\n", i, sum);
	}
    }
 
}