import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package ru.guredd.codejam;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

public class Main {

    protected static List<String> inputData = new ArrayList<String>();
    protected static List<String> outputData = new ArrayList<String>();

    public static void loadInputData(String fileName) throws IOException {
        BufferedReader in = null;
        try {
            inputData.clear();
            String line;
            in = new BufferedReader(new FileReader(fileName));

            if (!in.ready())
                throw new IOException();

            while ((line = in.readLine()) != null)
                inputData.add(line);
        } finally {
            if(in != null) {
                in.close();
            }
        }
    }

    public static void saveOutputData(String fileName) throws IOException {
        BufferedWriter out = null;
        try {
            out = new BufferedWriter(new FileWriter(fileName));

            for (String anOutputData : outputData) {
                out.write(anOutputData);
                out.newLine();
            }
        } finally {
            if(out != null) {
                out.close();
            }
        }
    }

    public static void main (String [] argv) throws IOException {

        loadInputData(argv[0]);

        Qualification2012C QC = new Qualification2012C();
        QC.solve();

        saveOutputData(argv[1]);
    }
}
