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 );
    }
}

package trupti;


import java.io.*;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class ok2 
{
    public static void main(String[] args) 
	{
		int cn=0;
        
        try 
		{
            
			FileOutputStream out=new FileOutputStream("out9.out");
            Scanner scanner = new Scanner(new FileReader("C-small-attempt6.in"));
			int n=scanner.nextInt();
		//	scanner.nextLine();
            while (n!=cn) {
				cn++;
				int q=0;
				int a=scanner.nextInt();
				int b=scanner.nextInt();
				int no=0;
				for(int r=a;r<=b;r++)
				{ 
					String str=r+"";
				//	System.out.println("str"+str);
					do{
						char c=str.charAt(0);
						String str1=str.substring(1, str.length()); 
						str=str1+c;
					//	System.out.println(str);
						no=Integer.parseInt(str);
					//	System.out.println("no"+no);
						if((no<r)&(a<=no)&(no<=b))
						{//System.out.println("no:"+no+"  r:  "+r);
							q++;
						}
						
					}while(no!=r);
				}


				out.write(("Case #"+cn+": "+q+"\n").getBytes());
				
				// out.write(("\n").getBytes());
				 System.out.println("Case #"+cn+": "+q);
				 //System.out.println();
            }
        } catch (Exception e) {}
                
	}
}