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.ArrayList;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
public class Q3 {
    public static void main(String[] args) throws IOException {
        Scanner reader=new Scanner(new File("D:\\C-small-attempt0 (1).in"));
        int noOfCases=reader.nextInt();
        String finalAnswer="";
        PrintWriter writer=new PrintWriter("D:\\out0.in");
        for(int loop=0;loop<noOfCases;loop++)
        {
            LinkedList<String> set=new LinkedList<String>();
            int counter=0;
            int firstNum=reader.nextInt();
            int secondNum=reader.nextInt();
            for(int currentN=firstNum;currentN<secondNum;currentN++)
            {
                String n=currentN+"";
                for(int i=1;i<=n.length()-1;i++)
                {
                    String nSubString=n.substring(n.length()-i,n.length())+n.substring(0,n.length()-i);
                    if(!nSubString.startsWith("0"))
                    {
                    if(!n.equals(nSubString))
                    {
                    int nSubInt=Integer.parseInt(nSubString);
                    if(nSubInt<=secondNum && nSubInt>(Integer.parseInt(n)))
                    {
                        if(!set.contains(n+","+nSubString))
                        {
                            set.add(n+","+nSubString);
                            counter++;
                        }
                    }
                    }
                    }
                }
            }
         finalAnswer+="Case #"+(loop+1)+": "+counter+"\n";
        }
           writer.write(finalAnswer);
            writer.flush();
            writer.close();
    }
}
