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 );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codajam2012;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.Vector;

/**
 *
 * @author dectroo
 */
public class Recycled {

    public static Vector<Long> tabl;

    static long[] RotationList(String N) {

        long result[] = new long[N.length() - 1];
        long n = Long.parseLong(N);
        long number = n;
        long start = number;
        int i = 0;
        int numdigits = (int) Math.log10((double) number); // would return numdigits - 1
        int multiplier = (int) Math.pow(10.0, (double) numdigits);


        while (true) {
            long q = number / 10;
            long r = number % 10;

            number = number / 10;
            number = number + multiplier * r;




            if (number == start) {
                break;
            } else {
                result[i] = number;
                i++;
            }
        }



        return result;

    }

    static void ComputePair(long A, long B) {

        long index = A;
        int numbrPair = 0;
        tabl = new Vector<Long>();
        String indexString;
        while (index < B) {

            if (index != 0) {
                indexString = String.valueOf(index);
                long result[] = RotationList(indexString);
                for (int i = 0; i < result.length; i++) {
                    /*
                     * if(tabl.contains(new Long(result[i]))){
                     *
                     * }
                     */
                    if (index < result[i] && result[i] <= B) {
                        tabl.add(new Long(result[i]));
                        //System.out.println(result[i]);
                    }
                }
            }
            index++;
        }


    }

    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        Scanner in = new Scanner(new File("test.in"));
        PrintWriter out = new PrintWriter("recycled.out");



        /*
         * for(int i=0;i<result.length;i++){ System.out.println(result[i]);
        }
         */



        int n = in.nextInt();
        int A = 0;
        int B = 0;
        in.nextLine();
        for (int i = 0; i < n; i++) {
            A = in.nextInt();
            B = in.nextInt();
            ComputePair(A, B);
            Object result[] = tabl.toArray();
            out.print("Case #"+(i+1)+": ");
            out.println(result.length);
        }
        in.close();
        out.close();
    }
}
