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 );
    }
}



import java.io.*;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Scanner;

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

/**
 *
 * @author joshuahm
 */
public class codejamC {
    public static void main(String[] args) throws FileNotFoundException, IOException {
        FileReader inFile = new FileReader("C-small-attempt0.in");
        Scanner in = new Scanner(inFile);
        FileWriter outFile = new FileWriter("C-small-attempt0.out");
        PrintWriter out = new PrintWriter(outFile);
        //Scanner in = new Scanner(System.in);
        
            ArrayList<String> temp2 = new ArrayList<String>();
            String temp;
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                {
                    temp = "" + i + j; 
                    temp2.add(temp);
                }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                    {
                        temp = "" + i + j + k ; 
                        temp2.add(temp);
                    }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                        {
                            temp = "" + i + j + k + l; 
                            temp2.add(temp);
                        }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                            for(int m=0;m<10;m++)
                            {
                                temp = "" + i + j + k + l + m; 
                                temp2.add(temp);
                            }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                            for(int m=0;m<10;m++)
                                for(int n=0;n<10;n++)
                                {
                                    temp = "" + i + j + k + l + m + n; 
                                    temp2.add(temp);
                                }
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                            for(int m=0;m<10;m++)
                                for(int n=0;n<10;n++)
                                    for(int p=0;p<10;p++)
                                {
                                    temp = "" + '1' + j + k + l + m + n + p; 
                                    temp2.add(temp);
                                }
           
            String[] perms = new String[temp2.size()];
            temp2.toArray(perms);     
            int total=0;
            int x;
        
        int T= in.nextInt();
        for(int t=0;t<T;t++)
        {
            total=0;
            int A= in.nextInt();
            int B= in.nextInt();    
            HashSet<Integer> distinct = new HashSet<Integer>();
            for(int i=0;i<perms.length;i++)
            {
                if(Integer.parseInt(perms[i])>B)
                    break;
                distinct.clear();
                temp = perms[i];
                if(Integer.parseInt(perms[i])>=A && Integer.parseInt(perms[i])<=B)
                {
                    distinct.add(Integer.parseInt(perms[i]));
                    for(int j=0;j<perms[i].length()-1;j++)
                    {
                        temp=temp.substring(1)+ temp.charAt(0);
                        x = Integer.parseInt(temp);
                        if(x<=B && x>=A && temp.charAt(0) != '0')
                            distinct.add(x);
                    }   
                    total+= distinct.size()-1;
                    //if(distinct.size()>1)
                       // System.out.println(perms[i] + "   " + (distinct.size()-1));
                } 
            }            
            out.println("Case #"+ (t+1) +": " + total/2);
        }
        in.close();
        out.close();
    }
}
