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 codejam;
import java.util.Scanner;
import java.util.StringTokenizer;
public class Codejam {
    static final Scanner keyboard = new Scanner(System.in);
    public static void main(String[] args) {
    int casos = Integer.parseInt(keyboard.nextLine());
        for(int x=1; x<=casos;x++)
        {
           String a, b;
           String A[]=new String[1000];
           String linea;
           linea = keyboard.nextLine();
            	StringTokenizer tokens= new StringTokenizer(linea," ");
		a = tokens.nextToken();
                b = tokens.nextToken();
           int counter=0;
           for (int i=Integer.parseInt(a); i<Integer.parseInt(b); i++)
                {
                    String c = "" +i;
                    char[] achar = c.toCharArray();
                    if (achar.length==2)
                    {
                        int one=Integer.parseInt("" +achar[1])*10+Integer.parseInt("" +achar[0]); 
                        if (one<=Integer.parseInt(b)&&one>i)
                        counter+=1;
                    }
                     if (achar.length==3)
                    {
                        int one= Integer.parseInt("" +achar[2])*100+Integer.parseInt("" +achar[0])*10+Integer.parseInt("" +achar[1]); 
                        if (one<=Integer.parseInt(b)&&one>i)
                        counter+=1;
                        int two= Integer.parseInt("" +achar[1])*100+Integer.parseInt("" +achar[2])*10+Integer.parseInt("" +achar[0]); 
                        if (two<=Integer.parseInt(b)&&two>i)
                        counter+=1;
                    }
                }
           System.out.println("Case #" +x +": " +counter);
        }     
    }
}
