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 gcj;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
    final static String PROBLEM_NAME = "rnum";
    final static String WORK_DIR = "D:\\Gcj\\" + PROBLEM_NAME + "\\";

    void solve(Scanner sc, PrintWriter pw) {
        int A = sc.nextInt();
        int B = sc.nextInt();
        int res = 0;
        for (int n=A; n <= B; n++) {
            String s = "" + n;
            Set<Integer> cand = new HashSet<Integer>();
            for (int st=1; st < s.length(); st++) {
                String ss = s.substring(st) + s.substring(0, st);
                int m = Integer.parseInt(ss);
                if (n < m && m >= A && m <= B)
                    cand.add(m);
            }
            res += cand.size();
        }
        pw.println(res);
    }

    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(new FileReader(WORK_DIR + "input.txt"));
        PrintWriter pw = new PrintWriter(new FileWriter(WORK_DIR + "output.txt"));
        int caseCnt = sc.nextInt();
        for (int caseNum=0; caseNum<caseCnt; caseNum++) {
            System.out.println("Processing test case " + (caseNum + 1));
            pw.print("Case #" + (caseNum+1) + ": ");
            new RecycledNumbers().solve(sc, pw);
        }
        pw.flush();
        pw.close();
        sc.close();
    }
}
