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.*;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			FileInputStream fstream = new FileInputStream("CProblem/C-small-attempt2.in");
			// Get the object of DataInputStream
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));

			FileWriter fwstream = new FileWriter("CProblem/Cout.txt");
			BufferedWriter out = new BufferedWriter(fwstream);

			String strLine = br.readLine();
			int n = 0;
			int A, B;
			RecycledNumbers recycledNumbers = new RecycledNumbers();
			if (strLine != null) {
				n = Integer.parseInt(strLine);
				System.out.println(n);
			}
			// Read File Line By LIN
			for (int i = 0; i < n; i++) {
			if ((strLine = br.readLine()) != null) {
				String[] numbers = strLine.split(" ");
				A = Integer.parseInt(numbers[0]);
				B = Integer.parseInt(numbers[1]);
				int count = recycledNumbers.calculate(A, B);
				out.write("Case #"+(i+1)+": "+count+'\n');
			}
		}
			// Close the input stream
			in.close();
			out.close();
		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
	}

	private int calculate(int A, int B) {
		int count = 0;
		int n,m;
		for (int i = A; i <= B; i++) {
			String num1 = String.valueOf(i);
			//String num2 = String.valueOf(B);
			String str="";
			 n = Integer.parseInt(num1);
			if (num1.length() == 1) {
				return 0;
			}
			switch (num1.length()) {
			case 4:
				str = num1.charAt(num1.length() - 1) + num1.substring(0, 3);
				m = Integer.parseInt(str);
				count = check(count, A, n, m, B);
				str = num1.substring(2, 4) + num1.substring(0, 2);
				m = Integer.parseInt(str);
				count = check(count, A, n, m, B);
				str = num1.substring(1, 4) + num1.charAt(0);
				m = Integer.parseInt(str);
				count = check(count, A, n, m, B);
				break;
			case 3:
				str = num1.charAt(num1.length() - 1) + num1.substring(0, 2);
				m = Integer.parseInt(str);
				count = check(count, A, n, m, B);
				str = num1.substring(1, 3) + num1.charAt(0);
				m = Integer.parseInt(str);
				count = check(count, A, n, m, B);
				break;
			case 2:
				str = num1.charAt(num1.length() - 1) + num1.substring(0, 1);
				m = Integer.parseInt(str);
				count = check(count, A, n, m, B);
				break;
			default:
				break;
			}
		}
		return count;

	}
	public int check(int count, int A, int n, int m, int B) {
		if (A <= n && n < m && m <= B) {
			count++;
		}
		return count;
	}

}
