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.*;
import java.io.*;

public class ProblemC {
	public static void main(String[] args){
		try{
			//Scanner scan = new Scanner(new File("C-small-attempt0.in"));
			Scanner scan = new Scanner(new File("C-small-attempt0.in"));
			int nLines = scan.nextInt();
			scan.nextLine();
			for(int testCase = 1; testCase <= nLines; testCase++){
				int x = scan.nextInt();
				int y = scan.nextInt();
				int recycled = 0;
				for(int a = x; a < y; a++){
					for(int b = a+1; b <= y; b++){
						if(isRecycled(a, b)){
							recycled++;
						}
					}
				}
				System.out.printf("Case #%d: %d\n", testCase, recycled);
			}
		} catch(FileNotFoundException fnfe){
			System.err.println("File Not Found");
		}
	}
	
	public static boolean isRecycled(int a, int b){
		String aStr = "" + a;
		String bStr = "" + b;
		char firstChar = aStr.charAt(0);
		int strLen = aStr.length();
		int startIndex = bStr.indexOf(firstChar);
		while(startIndex >= 0){
			if(testLocation(aStr, bStr, startIndex)){
				return true;
			}
			
			if(startIndex < (strLen-1)){
				int newIndex = bStr.substring(startIndex + 1).indexOf(firstChar);
				if(newIndex >= 0){
					startIndex += newIndex + 1;
				} else {
					break;
				}
			} else {
				startIndex = -1;
			}
		}
		return false;
	}
	
	public static boolean testLocation(String a, String b, int startPos){
		for(int i = 0; i<a.length(); i++){
			if(a.charAt(i) != b.charAt((i + startPos) %  b.length())){
				return false;
			}
		}
		return true;
	}
}