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 javaapplication18;

/**
 *
 * @author USER-1
 */
import java.io.*;
public class Main {

    /**
     * @param args the command line arguments
     */

    public static boolean check_recycled(int m,int n)
    {
    int rem=0,div=m;
    Integer k=new Integer(m);
    Integer k1=new Integer(n);
    String g=k.toString();
    String g1=k1.toString();
    int c=0,l=g.length(),l1=g1.length();
    while(c<l)
    {
        int w=0,ml=0;
        String temp="",temp1="";
    while(w<=c)
    {
      temp=String.valueOf(g.charAt(l-w-1))+temp;
      
      w++;
    }
     while(ml<=(l-w-1))
     {
     temp1=temp1+String.valueOf(g.charAt(ml));
     ml++;
     }
    //System.out.println(temp1);
    
    if((temp+temp1).equals(g1))
    {
return true;
    }
    c++;
    }
    return false;
    }


    public static void main(String[] args) {
        // TODO code application logic here
    
    try
    {
    BufferedReader br=new BufferedReader(new FileReader("a1.in.txt"));
    PrintWriter out=new PrintWriter(new FileWriter("out.txt"));
    int t=Integer.parseInt(br.readLine());
    int q=0;
    while(q<t)
    {
    String h[]= br.readLine().split(" ");
    int a=Integer.parseInt(h[0]);
    int b=Integer.parseInt(h[1]),n=0,m=0,p=0;
    //out.println(check_recycled(12345,34512));
    for(int i=a;i<b;i++)
    {
    n=i;
    for(int j=a+1;j<=b;j++)
    {
    m=j;
    if(m>n)
    {
     if(check_recycled(n,m))
     {
     p++;
     
     }

    }
    }
    }
    out.println("Case #"+(q+1)+":"+" "+p);
    q++;
    }
    out.flush();
    }
    catch(Exception e)
    {
    System.out.print(e.toString());


    }

    }

}
