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.FileWriter;
import java.io.PrintWriter;
import java.util.Scanner;

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

/**
 *
 * @author Eunice
 */
public class Recycled_Numbers {

    static Scanner scanner = new Scanner(System.in);
    static PrintWriter out;

    public static void main(String[] args) {

        try {
             out = new PrintWriter(new FileWriter("C:\\Users\\Eunice\\Desktop\\Code Jam\\CodeJam Outputs\\Recycled_Numbers.txt" ));
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }

        int noTestCases = scanner.nextInt();
        for(int i = 0; i < noTestCases; i++) {
            int A = scanner.nextInt();
            int B = scanner.nextInt();
            int noRecycledPairs = 0;
            String valueOfA = String.valueOf(A);
            String valueOfB = String.valueOf(B);
            int noDigits = valueOfA.length();
            int[] possible = new int[(B - (A - 1))];
            for(int j = 0; j < (B - (A - 1)); j++) {
                possible[j] = A + j;
            }
            int n = 0;
            int m = 0;
            String valueOfn;
            String valueOfm;
            for(int l = 0; l < possible.length; l++) {
                n = possible[l];
                valueOfn = String.valueOf(n);
                for(int k = 0; k < possible.length; k++) {
                    m = possible[k];
                    valueOfm = String.valueOf(m);
                    if(k != l) {
                        if((A <= n) && (n < m) && (m <= B)) {
                            String s = valueOfn;
                            for(int p = 0; p < noDigits; p++) {
                                
                                s = s.charAt(s.length() - 1) + s.substring(0, (s.length() - 1));
                                if(s.equals(valueOfm)) {
                                    noRecycledPairs++;
                                    p = noDigits;
                                }
                            }
                        }
                    }
                }
            }
            
            System.out.println("Case #" + (i + 1) + ": " + noRecycledPairs);
//            out.close();
        }
    }
}
