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.*;


public class RecyledNumbers {
	public static void main(String args[]) throws IOException{
	   	 Scanner scan=new Scanner(new File("C-small-attempt0.in"));
	   	 PrintWriter pw=new PrintWriter(new File("result.txt"));
	   	 int caseNum=Integer.parseInt(scan.nextLine());
	   	 for(int i=1;i<=caseNum;i++){
	   		 String a=scan.nextLine();
	   		 //System.out.println(a);
	   		 int result=0;
	   		 String[] temp=new String[2];
	   		 temp=parseString(a);
	   		 //System.out.println(temp);
	   		 String A=temp[0];
	   		 String B=temp[1];
	   		 for(int j=Integer.parseInt(A);j<Integer.parseInt(B);j++){
	   			 String t=""+j;
	   			 result=result+judgeRecycle(t,B);
	   		 }
	   		 pw.println("Case #"+i+": "+result);
	   		 System.out.println("Case #"+i+": "+result);
	   	 }
	   	 pw.flush();
	   	 pw.close();
	    }
		
		public static String[] parseString(String s){
			String[] result=new String[2];
			for(int i=0;i<s.length();i++){
				if(s.charAt(i)==' ') {
					result[0]=s.substring(0, i);
					//System.out.println(result[0]);
					result[1]=s.substring(i+1, s.length());
					//System.out.println(result[1]);
					break;
				}
				if(i==s.length()-1) result[0]=s;
				result[1]=s.substring(i, s.length());
			}
			//System.out.println(result);
			return result;
		}
		
		public static int judgeRecycle(String toBeJudged, String B){
			
			List<Integer> movedNum=new ArrayList<Integer>();
			for(int i=1;i<toBeJudged.length();i++){
				int temp=Integer.parseInt(toBeJudged.substring(i, toBeJudged.length())+toBeJudged.substring(0, i));
				if(temp>Integer.parseInt(toBeJudged) && temp<=Integer.parseInt(B)) {
					if(!movedNum.contains(temp)) movedNum.add(temp);
					System.out.println(toBeJudged+" "+temp);
				}
			}
			return movedNum.size();
		}
}
