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.*;

    class recycled_numbers
   {
       public static void main(String[] args) throws Exception
      {
         BufferedReader in = new BufferedReader(new FileReader("recnum.in"));
         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("recnum.out")));
      
         int n = Integer.parseInt(in.readLine());
         int ans = 0;
         for(int x = 0; x<n; x++)
         {
            out.print("Case #" + (x+1) + ": ");
            ans = 0;
            String input = in.readLine();
            StringTokenizer token = new StringTokenizer(input, " ");
            int a = Integer.parseInt(token.nextToken());
            int b = Integer.parseInt(token.nextToken());
            for(int y = a; y<=b; y++)
            {
               for(int z = y+1; z<=b; z++)
               {
                  if(recycled("" +y,""+z))
                     ans++;
               }
            }
            out.println(ans);
         }
         out.close();
      }
       public static boolean recycled(String a, String b)
      {
         if(a.length() != b.length() || hash(a)!=hash(b))
				return false;
         //if(a.length() < b.length())
         //   return recycled("0"+a, b);
			//else if(b.length() < a.length())
			//	return recycled(a,"0"+b);
     
	   	
         for(int x = 0; x<a.length(); x++)
         {
            if(a.equals(b))
               return true;
            a = a.substring(1,a.length())+a.substring(0,1);
         }
         if(a.equals(b))
            return true;
         return false;
      }
		
		public static int hash(String a)
		{
			int sum = 0;
			for(int x = 0; x<a.length(); x++)
			{
				int b = (int)(a.charAt(x));
				sum+=b;
			}
			return sum;
		}
   }