package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcj12_qc;

import java.io.FileOutputStream;
import java.util.HashSet;
import java.util.Scanner;

/**
 *
 * @author youssefgamil
 */
public class Gcj12_qC {

    /**
     * @param args the command line arguments
     */
    public static String leading0(String txt)
    {
        while(txt.charAt(0)=='0')
            txt=txt.substring(1);
        return txt;
    }
    public static void main(String[] args) throws Exception {
        HashSet<String> hs=new HashSet<String>();
        Scanner sc=new Scanner(System.in);
        FileOutputStream out=new FileOutputStream("out.txt");
        int a,b,i,j,tc,T;
        long res=0;
        String tmp;
        T=sc.nextInt();
        for(tc=1;tc<=T;tc++)
        {
            a=sc.nextInt();
            b=sc.nextInt();
            res=0;
            for(i=a;i<=b;i++)
            {
//                if(hs.contains(i+""))
//                    continue;
                
                tmp=i+"";
                
//                hs.add(tmp);
  //              System.out.println(tmp+">");
                
                hs=new HashSet<String>();
                for(j=0;j<tmp.length();j++)
                {
                        tmp=tmp.substring(1)+tmp.charAt(0);

                        
                    if(!hs.contains(tmp))//+","+i) && !hs.contains(i+","+tmp))
                    {
                            hs.add(tmp);//+","+i);
                        if(a<=Integer.parseInt(tmp)&&Integer.parseInt(tmp)<=b && Integer.parseInt(tmp)!=i)
                        {
//                        System.out.println(i+","+tmp);
                            res++;
                        }
                    }
                }
            }
            res/=2L;
            System.out.print(("Case #"+tc+": "+res+"\n"));
            out.write(("Case #"+tc+": "+res+"\n").getBytes());
        }
        out.close();
        // TODO code application logic here
    }
}
