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.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;


public class Main {
	public static void main(String[] args) throws FileNotFoundException {
		Scanner in = new Scanner(new File("C-small-attempt2.in"));
		PrintWriter out = new PrintWriter("C:\\Users\\JiaKY\\Desktop\\out.txt");
		//Scanner in = new Scanner(System.in);
		
		int n = Integer.valueOf(in.nextLine());
		for(int i=0;i<n;i++){
			String line = in.nextLine();
			String[] data = line.split(" ");
			int start = Integer.valueOf(data[0]);
			int end = Integer.valueOf(data[1]);
			
			Set<Record> set = new TreeSet<Record>();
			for(int s = start;s <= end;s++){
				String ori = String.valueOf(s);
				for(int j=1;j<ori.length();j++){
					String trans = ori.substring(j).concat(ori.substring(0, j));
					int tmp = Integer.valueOf(trans);
					if(tmp <= end && tmp >= start && tmp != s){
						if(tmp > s)
							set.add(new Record(s, tmp));
						else
							set.add(new Record(tmp, s));
					}
				}
			}
			//System.out.println(set);
			out.printf("Case #%d: %d",i+1,set.size());
			out.println();
			out.flush();
		}
		
	}

}
class Record implements Comparable<Record>{
	int a;
	int b;
	public Record(int i,int j) {
		// TODO Auto-generated constructor stub
		a = i;
		b = j;
	}
	@Override
	public int compareTo(Record o) {
		// TODO Auto-generated method stub
		if(o.a != a)
			return a - o.a;
		else
			return b-o.b;
	}
	@Override
	public String toString() {
		// TODO Auto-generated method stub
		return a+" "+b;
	}
	
}
