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 );
    }
}

package qual;

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

class RecycledPair
{
	int a; 
	int b;
	
	public RecycledPair(int a, int b) {
		super();
		this.a = a;
		this.b = b;
	}

	@Override
	public int hashCode() {
		final int PRIME = 31;
		int result = 1;
		result = PRIME * result + (a + b);
		result = PRIME * result + (a + b);
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		final RecycledPair other = (RecycledPair) obj;
		if (a == other.a && b==other.b)
			return true;
		if (a == other.b && b==other.a)
		    return true;
		return false;
	}
	
	
	
}
public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);

		int T = in.nextInt();

		in.nextLine();

		for (int t = 0; t < T; t++) {
			String s = in.nextLine();
			String[] limit = s.split(" ");
			int A = Integer.parseInt(limit[0]);
			int B = Integer.parseInt(limit[1]);

			Set<RecycledPair> recycledPairsEncountered = new HashSet<RecycledPair>();

			int count = 0;
			for (int i = A; i <= B; i++) 
			{
				char[] num = String.valueOf(i).toCharArray();

				for (int k = num.length - 1; k >= 1; k--) 
				{
					String recycledNumber = "";
					if (num[k] != '0') 
					{
						int indx = k;
						while (indx < num.length)
							recycledNumber += num[indx++];
						indx = 0;
						while (indx < k)
							recycledNumber += num[indx++];
					}

					if (!recycledNumber.equals("")) 
					{
						int recycledNum = Integer.parseInt(recycledNumber);

						if (recycledNum != i
								&& recycledNum <= B
								&& recycledNum >= A)
						{
						     RecycledPair r = new RecycledPair(i, recycledNum);	
						     if(recycledPairsEncountered.contains(r)==false)
						     {
						    	 recycledPairsEncountered.add(r);
						     	 count++;
						     }
						}
					}
				}
			}

			System.out.println("Case #" + (t + 1) + ":" + " " + count);
		}
	}

}
