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 );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package test;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

/**
 *
 * @author Jeric Bryle Sy Dy
 */
public class GJamC2 {

	private static class Ref {

		public int cnt;
		public Set<String> set;

		public Ref() {
			cnt = 0;
			set = new HashSet<String>();
		}
	}

	private static void permuteMove(char[] arr, int len, String strN, String strB, Ref ref) {
		int arrLen = arr.length;
		char[] result = new char[arrLen];

		int index = 0;
		for (int i = arrLen - len; i < arrLen; ++i) {
			result[index++] = arr[i];
		}
		for (int i = 0; i < arrLen - len; ++i) {
			result[index++] = arr[i];
		}

		String strCur = new String(result);
		if (strCur.compareTo(strN) > 0 && strCur.compareTo(strB) <= 0 && !ref.set.contains(strCur)) {
			ref.set.add(strCur);
			++ref.cnt;
		}
	}

	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new FileReader("C:/Users/Jeric Bryle Sy Dy/Downloads/C-small-attempt0.in"));
		PrintWriter out = new PrintWriter("C:/Users/Jeric Bryle Sy Dy/Downloads/C-small-attempt0.out");

		int t = Integer.parseInt(br.readLine());

		for (int tIter = 0; tIter < t; ++tIter) {
			Scanner s = new Scanner(br.readLine());

			int a = s.nextInt();
			int b = s.nextInt();

			Ref ref = new Ref();

			for (int n = a; n < b; ++n) {
				ref.set.clear();
				String strN = String.valueOf(n);
//				permute(strN.toCharArray(), 0, strN, String.valueOf(b), 1, ref);
				for (int len = 1; len < strN.length(); len++) {
					permuteMove(strN.toCharArray(), len, strN, String.valueOf(b), ref);
				}
			}

			s.close();

			out.printf("Case #%d: %d\n", tIter + 1, ref.cnt);
		}

		br.close();
		out.close();
	}
}
