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.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;


public class QualificationQ3 {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		FileWriter fstream = new FileWriter("out.txt");
		BufferedWriter out = new BufferedWriter(fstream);

		File file = new File(args[0]);
		Scanner in = new Scanner(file);
		int T = in.nextInt();
		in.nextLine();
		for (int zz = 1; zz <= T; zz++) {

			String outputLine = process(in);
			output(out,zz,outputLine);
		}
		in.close();
		out.close();
	}

	private static String process(Scanner in) {
		
		int begin = in.nextInt();
		int end = in.nextInt();
		int counter  = 0;
		
		for (int i=begin;i<end;i++){
			ArrayList<Integer> l= generateTheQualifiedList(i,end);
			counter += l.size();
		}
		
		return ""+counter;
	}
	
	private static ArrayList<Integer> generateTheQualifiedList(int num, int end) {

		ArrayList<Integer> qualifiedNumList = new ArrayList<Integer>();
		String sNumber = "" + num;
		int len = sNumber.length();
		ArrayList<Integer> handledNumber = new ArrayList<Integer>();
		for (int i=1;i<len;i++){
			String rNumber = sNumber.substring(i) + sNumber.substring(0,i);
			int iNumber = new Integer(rNumber);
			if (iNumber>num && iNumber<=end){
				//System.out.println(num + " " +iNumber);
				if (!handledNumber.contains(iNumber)){
					handledNumber.add(iNumber);
					qualifiedNumList.add(iNumber);
				}else{
					System.out.println(iNumber);
				}
			}
		}
		
		return qualifiedNumList;
	}

	private static void output(BufferedWriter out, int zz, String formattedString) throws IOException {
		String outputLine = String.format("Case #%d: %s\n", zz,
				formattedString);
		System.out.format(outputLine);
		out.write(outputLine);
	}

}
