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 com.brootdev.gcj2012.problemC;

import com.brootdev.gcj2012.common.Data;

import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

public class Main {

    private Data data;
    private long casesNumber;
    private long currentCase;

    public static void main(String[] args) throws IOException {
        new Main().go(args[0], args[1]);
    }

    public void go(String inFile, String outFile) throws IOException {
        data = new Data(inFile, outFile);
        casesNumber = data.readLongLine();
        for (currentCase = 0; currentCase < casesNumber; currentCase++) {
            data.writeCaseHeader(currentCase);
            processCase();
        }

        data.out.flush();
    }

    private void processCase() throws IOException {
        long[] longs = data.readLongsArrayLine();
        long A = longs[0];
        long B = longs[1];

        int digits = ((int) Math.log10(A)) + 1;
        long mn = (long) Math.pow(10, digits - 1);
        long sum = 0;
        Set<Long> m2 = new HashSet<Long>();
        for (long n = A; n < B; n++) {
            long m = n;
            m2.clear();
            for (int i = 1; i < digits; i++) {
                int r = (int) (m % 10);
                m = r * mn + m / 10;
                if (m <= B && n < m && ! m2.contains(m)) {
                    sum++;
                    m2.add(m);
                }
            }
        }

        data.out.println(sum);
    }
}
