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.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;


public class TaskC {

	static int numberLength;
	
	public static void main(String[] args ) throws FileNotFoundException {
		File fileName = new File("taskc.txt");
		Scanner inFile = new Scanner(fileName);
		int n = inFile.nextInt();
		inFile.useDelimiter("\\r?\\n");
		String[] cases = new String[n];
		for (int i = 0; i < n; i++)
			cases[i] = inFile.next();
		List<String> result = new ArrayList<String>();
		for (String caseString: cases) {
			int recycledNumbers = 0;
			Scanner caseScanner = new Scanner(caseString);
			String lowerBoundString = caseScanner.next();
			int lowerBound = Integer.parseInt(lowerBoundString);
			int upperBound = caseScanner.nextInt();
			for (int i = lowerBound; i <= upperBound; i++) {
				String iString = new Integer(i).toString();
				for (int j = i + 1; j <= upperBound; j++) {
					String jString = new Integer(j).toString();
					if (evaluate(iString, jString))
						recycledNumbers++;
				}
			}
			result.add("" + recycledNumbers);
		}
		
		for (int i = 0; i < result.size(); i++) {
			System.out.println("Case #" + (i+1) + ": " + result.get(i));
		}
	}

	private static boolean evaluate(String iString, String jString) {
		for (int n = 1; n < jString.length(); n++) {
			String testString = jString.substring(n) + jString.substring(0, n);
			if (iString.equals(testString))
				return true;
		}
		return false;
	}
	
}
