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.util.*;

public class Recycled {

    private static int solve(int A, int B) {
        int count = 0;
        HashSet<Integer> s = new HashSet<Integer>();

        for (int n = A; n < B; n++) {
            String i = n + "";
            s.clear();
            int t = i.length();

            while (i.charAt(t-1) == '0')
                t--;
            
            for (int j = 1; j < t; j++) {
                int m = Integer.parseInt(i.substring(j) + i.substring(0, j));
                if (n < m && m <= B)
                    s.add(m);
            }
            
            count += s.size();
        }

        return count;
    }

    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);

        int N = in.nextInt();

        for (int i = 0; i < N; i++) {
            System.out.println("Case #" + (i+1) + ": " + 
                               solve(in.nextInt(), in.nextInt()));
        }
    }
}
