/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

}
import java.io.*;
import java.util.*;

/**
 * */
public class Main {
	
	/**
	 * */
	public class TestCase{
		
		public Integer a, b;
		public Integer[] rNumbers; 
		public Integer iResult=0; 
		public Set<String> setPairs=Collections.synchronizedSet( new HashSet<String>());
		
		/**
		 * @param a
		 * @param b
		 * */
		public TestCase( int a, int b){
			this.a=a;
			this.b=b; 
			this.rNumbers=new Integer[ ( this.b- this.a)+ 1];
			for( int i=this.a; i<=this.b; i++)
				this.rNumbers[ i- this.a]=i; }
		
		/**
		 * */
		public void doSolution(){
			this.iResult=0;
			for( int i=0; i!=this.rNumbers.length; i++){
				Integer number=this.rNumbers[ i];
				String strNumber=String.valueOf( number); 
				if( strNumber.length()>=2){
					for( int s=1; s!=strNumber.length(); s++){
							String strPrefix=strNumber.substring( 0, s); 
							String strSuffix=strNumber.substring( s); 
							String strNewNumber=strSuffix+ strPrefix; 
							Integer newNumber=Integer.valueOf( strNewNumber);
							if(( newNumber>=this.a) && ( newNumber<=this.b) && ( number.compareTo( newNumber)!=0))
								this.addPair( number, newNumber); }}}
			this.iResult=this.setPairs.size(); }
		
		public void addPair( Integer n, Integer m){
			String nm=n+"+"+m; 
			String mn=m+"+"+n; 
			if( !this.setPairs.contains( nm) && !this.setPairs.contains( mn)){
				this.setPairs.add( nm); }}
	}
	public TestCase createTestCase( int a, int b){ return new TestCase( a, b); }	
	
	/**
	 * */
	public static void main( String[] args){

		try {
		
			Main m=new Main();
			LineNumberReader reader=new LineNumberReader( new FileReader( new File( args[ 0].trim())));
			PrintWriter printer=new PrintWriter( new FileWriter( args[ 1].trim()));
			
			int nTestCases=Integer.valueOf( reader.readLine());
			for( int i=0; i!=nTestCases; i++){
				String str[]=reader.readLine().split( " ", 2);
				TestCase testCase=m.createTestCase( Integer.valueOf( str[ 0].trim()), Integer.valueOf( str[ 1].trim())); 
				testCase.doSolution(); 				
				printer.println( "Case #"+( i+ 1)+": "+ testCase.iResult);
				System.out.println( "Case #"+( i+ 1)+": "+ testCase.iResult); }
						
			printer.close();
		
		} catch (FileNotFoundException e) {
		
		e.printStackTrace(); } catch (IOException e) {
		e.printStackTrace(); }}}
