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 ProblemC {

   Set<Long> recycled = new TreeSet<Long>();
    int count = 0;

    FileWriter fstream;
    BufferedWriter out;

    public static void main(String[] args) throws IOException {
        ProblemC p = new ProblemC();
        p.fstream = new FileWriter("outC.txt");
        p.out = new BufferedWriter(p.fstream);
        p.readFile("C-small-attempt0.in");
        p.out.close();
    }

    public void readFile(String filePath) {

        String[] result = null;

        try {
            FileReader input = new FileReader(filePath);
            BufferedReader bufRead = new BufferedReader(input);


            Scanner scan = new Scanner(input);

            this.count = scan.nextInt();


            for (int i = 0; i < count; i++) {
                int a = scan.nextInt();
                int b = scan.nextInt();
                out.write("Case #"+(i+1)+": "+calculate(a, b));
                if (i<count-1)
                    out.write("\n");
            }
            bufRead.close();
        } catch (IOException e) {
            e.printStackTrace();
        }



    }

    public int calculate(int a, int b) {
        recycled.clear();
        int count = 0;

        for (int i = a; i <= b; i++) {

            String num = String.valueOf(i);
            int d = num.length();
            for (int j = 1; j < num.length(); j++) {
                String newNum = num.substring(num.length() - j, num.length()) + num.substring(0, num.length() - j);
                if (newNum.charAt(0) != '0') {
                    int value = Integer.valueOf(newNum);
                    if ((value <= b) && (value >= a) && (value != i) && (!recycled.contains(Long.parseLong(num+newNum))) && (!recycled.contains(Long.parseLong(newNum+num))))  {
                        recycled.add(Long.parseLong(num + newNum));
                        recycled.add(Long.parseLong(num+newNum));
                        count++;
                    }

                }
            }
        }
        System.out.println(count);
        return count;
    }


}
