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.HashMap;
import java.util.Scanner;

public class recycle {

	public static HashMap<String, String> bigmap = new HashMap<String, String>();

	public static void main(String[] args) throws FileNotFoundException {
		File f = new File("in.in");
		Scanner input = new Scanner(f);
		int k = Integer.parseInt(input.nextLine());
		for (int i = 0; i < k; i++) {
			String[] stuff = input.nextLine().split(" ");
			int a = Integer.parseInt(stuff[0]);
			int b = Integer.parseInt(stuff[1]);
			System.out.println("Case #" + (i + 1) + ": " + doit(a, b));
		}
	}

	public static int doit(int A, int B) {

		HashMap<String, String> m = new HashMap<String, String>();
		int n = 1;
		for (int a = A; a < B; a++) {
			for (int b = a + 1; b <= B; b+=n) {
				n = 1;
				if (bigmap.containsKey(a + "" + b)) {
					m.put(a + "" + b, "");
				} else {
					String s = a + "";
					String q = b + "";
					for (int i = 0; i < s.length(); i++) {
						String old = s;
						char c = s.charAt(s.length() - 1);
						s = c + s.substring(0, s.length() - 1);
						if (s.equals(q)) {
							n = 9;
							m.put(a + "" + b, "");
							bigmap.put(a + "" + b, "");
						}
					}
				}
			}
		}
		return m.size();
	}

}
