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.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.StringTokenizer;

public class Main {
	public static void main(String[] args) throws IOException {

		String filename = "recycled-input.in";
		FileReader reader = new FileReader(new File(filename));
		BufferedReader bufferedReader = new BufferedReader(reader);

		File outputFile = new File("recycled-output.in");
		BufferedWriter writer = new BufferedWriter(new FileWriter(outputFile));

		int total = Integer.parseInt(bufferedReader.readLine());
		for( int i = 1; i <= total; i++){
			// processa cada linha
			
			StringTokenizer tokenizer = new StringTokenizer(bufferedReader.readLine());
			int a = getNextInteger(tokenizer);
			int b = getNextInteger(tokenizer);

			int recycledPairs = findAllRecycledNumbers(a,b);
			
			String msg = geraOutputMsg(i,recycledPairs);
			System.out.print(msg);
			
			writer.write(msg);
			
		}
		writer.close();

	}

	private static String geraOutputMsg(int i, int recycledPairs) {
		return String.format("Case #%d: %d\n", i, recycledPairs );
	}

	private static Integer getNextInteger(StringTokenizer tokenizer) {
		return Integer.parseInt(tokenizer.nextToken());
	}

	private static Integer findAllRecycledNumbers(Integer initial, Integer limit) {

		int totalRecycledNumbers = 0;
		for (int i = initial; i <= limit; i++){
			int recycledNumbers = findRecycledNumbers(i, initial, limit);
			totalRecycledNumbers += recycledNumbers;
		}
		
		return totalRecycledNumbers;
	}

	private static int findRecycledNumbers(Integer number, Integer initial, Integer limit) {
		
		String initialString = number.toString();

		int recycledNumbers = 0;
		int length = initialString.length();
		
//		List<String> allPermutations = new ArrayList<String>();
		HashSet<String> recycledList = new HashSet<String>();
		for (int i = 0; i < length-1; i++){

			String movedChars = initialString.substring(0, i+1);
			String strPermutationNumber = initialString.replaceFirst(movedChars, "").concat(movedChars);

//			allPermutations.add(strPermutationNumber);
			
			int permutationNumber = Integer.parseInt(strPermutationNumber);
			if (permutationNumber > number && permutationNumber <= limit && !recycledList.contains(strPermutationNumber)){
				recycledList.add(strPermutationNumber);
				recycledNumbers++;
			}

		}
//		if (recycledNumbers > 0){
//			printRecycledNumbers(number, allPermutations, recycledList);
//			printRecycledNumbers(number, recycledList);
//		}
		return recycledNumbers;
	}

//	private static void printRecycledNumbers(Integer number,
//			List<String> recycledList) {
//		System.out.printf("Número (%d): ", number);
//		printList(allPermutations);
//		System.out.print(" -> ");
//		printList(recycledList);
//		System.out.println();
//	}

//	private static void printList(List<String> list) {
//		System.out.printf("[%s",list.get(0));
//		for (int i = 1; i < list.size(); i++ ){
//			String stringNumber = list.get(i);
//			System.out.printf(",%s",stringNumber);
//		}
//		System.out.print("]");
//	}
}
