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.util.Scanner;
import java.util.TreeMap;


public class RecycledNumbers {
	public static void main(String[]args){
		Scanner sc = new Scanner(System.in);
		//Read in the T int -- Test Cases
		int T = Integer.parseInt(sc.nextLine());
		for (int t = 1; t <= T; t++) {
			int num = 0;
			//START OF CODE
			int a = sc.nextInt();
			int b = sc.nextInt();
			int focus = a;
			
			for (int i = 0; focus < b; i++) {
				String f = focus + "";
				boolean distinct = true;
				/*all:for (int j = 0; j < f.length(); j++) {
					for (int j2 = j+1; j2 < f.length(); j2++) {
						if(f.charAt(j) == f.charAt(j2)){
							distinct = false;
							break all;
						}
					}
				}
				distinct = true;*/
				if(distinct){
					for (int j = 0; j < f.length() - 1; j++) {
						f = f.charAt(f.length()-1) + f.substring(0,f.length()-1);
						int fs = Integer.parseInt(f);
						if(fs <= b && f.charAt(0) != '0' && fs > focus){
							//System.out.println(focus+ " "+ f);
							num++;
						}
					}	
				}
				
				focus++;
			}
			//END OF CODE
			//OUTPUT
			System.out.format("Case #%d: %d\n", t, num);
		}
	}
}
