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.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;


public class prob3 {

	/**
	 * @param args
	 */
	
	
	
	
	static BufferedReader openRead(String fileName){
		 BufferedReader in = null;
		try {
			in = new BufferedReader(new FileReader(fileName));
		} catch (FileNotFoundException e) {
			System.err.println("Error Opening the input file");
			e.printStackTrace();
		}
		 return in;
	}
	
	
	
	static int countRecyclyed(int n, int A, int B, int len){
		int result = 0;
		int l = 10;
		int t = 1;
		for (int i = 1; i < len; i++)
			t = t*10;
		for (int i = 1; i < len; i++){
			int m = n / l + (n % l)*t; 
			l = l*10;
			t = t /10;
			if (m > A && m <=B && m >n){
			    result ++;
			    System.out.format("(%d , %d)\n", n, m);
			}
			
			
		}
		
		return result;
		
		
	}
	
	
	static void processLine( String line ,  int k, PrintStream ps){
		ps.format("Case #%d: ", k);
		String[] lineItems = line.split(" ");
			
		int A = Integer.parseInt(lineItems[0]);
		int B = Integer.parseInt(lineItems[1]);
		int len = lineItems[0].length();
		System.out.println(len);
		int n = 0;
		for (int i = A ; i < B; i++){
			 n += countRecyclyed(i, A, B, len);
		}
	  ps.format("%d\n", n);	
		
	}
	
	public static void main(String[] args) throws IOException {
		if (args.length < 1){
			System.err.println("not suffucient args");
			System.exit(-1);
		}
		BufferedReader in = openRead(args[0]);
		PrintStream ps = new PrintStream(new File(args[1]));
		// read size
		int T = 0;
		String TStr = in.readLine();
		T = Integer.parseInt(TStr);
		if ( T < 1 || T > 100)
			System.exit(-1);
		
		
		// read contents
		String line;
		for (int i = 0; i < T  && (line = in.readLine())!= null; i++){
			processLine( line, i+1, ps);
		}
		
			
			
			
			
			
		System.out.println("Done!");

	}
	


}
