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 codejam2012pa;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;


/**
 *
 * @author Fred
 */
public class CodeJam2012PA 
{

    /**
     *         type entrada.txt | java -jar Programa.jar > saida.txt
     */
    public static void main(String[] args) throws Exception 
    {        

        BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
        String line = buf.readLine();

        
        int j = 1;
        while((line = buf.readLine()) != null)
        {
            String[] l = line.split(" ");

            System.out.println("Case #"+j+": "+count(l[0], l[1]));
            j++;
        }      
    }
    
    public static int count(String aa, String bb)
    {
        Integer a = Integer.valueOf(aa);
        Integer b = Integer.valueOf(bb);
        int count = 0;
        for (int i = a; i <= b; i++) 
        {
            count = count +  checkRec(i, a, b);
        }
        return count;
    }
    
    //Checa se Ã© recicle pairs entre n e m
    public static int checkRec(int n, int a, int b)
    {
        ArrayList<String> rep = new ArrayList<String>();
        int count = 0;
        String v = String.valueOf(n);
        for (int i = 0; i < v.length()-1; i++) 
        {
            char aux = v.charAt(v.length()-1);
            v = v.substring(0, v.length()-1);
            v = aux+v;
            int m = Integer.valueOf(v);
            if(a <= n && n < m && m <= b && !rep.contains(v))
            {
                rep.add(v);
                count++;
            }
        }
        return count;
    }
}
