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.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class RecycledNumbers {
	
	public static File input;
	public static FileReader inputReader;
	public static BufferedReader in;
	
	public static File output;
	public static FileWriter outputWriter;
	public static BufferedWriter out;
	
	private static void init(String problemName) throws IOException {
		input = new File(problemName+".in");
		inputReader = new FileReader(input);
		in = new BufferedReader(inputReader);
		
		output = new File(problemName+".out");
		outputWriter = new FileWriter(output);
		out = new BufferedWriter(outputWriter);
	}
	
	public static int INT() throws IOException {
		return Integer.parseInt(in.readLine());
	}
	
	public static String LINE() throws IOException {
		return in.readLine();
	}
	
	public static void main(String[] args) throws IOException {
		init("recycled-numbers");
		
		int cases = INT();
		for(int i = 1; i <= cases; i++) {
			String[] bounds = LINE().split("\\s");
			int A = Integer.parseInt(bounds[0]);
			int B = Integer.parseInt(bounds[1]);
			
			Set<String> pairs = new HashSet<String>();
			
			for(int x = A; x<=B; x++) {
				String n = String.valueOf(x);
				int digits = n.length();
				if(digits > 1) {
					for(int p = 1; p < digits; p++) {
						String m = n.substring(n.length()-p)+n.substring(0,n.length()-p);
						int mN = Integer.parseInt(m);
						if(m.startsWith("0") || !(mN >= A && mN <=B)){
							continue;
						} else {
							if(x < mN){
								pairs.add("("+n+","+m+")");
							}
						}
					}
				}
			}
			
			System.out.println("Case #"+i+": "+pairs.size());
			out.write("Case #"+i+": "+pairs.size());
			out.newLine();
		}
		
		out.flush();
		out.close();
		in.close();
	}
}
