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

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

@SuppressWarnings( "nls" )
public class R0C
{
  public static void main( final String[] args ) throws IOException
  {
    final Scanner in = new Scanner( new File( "R0C.txt" ) );
    final FileWriter out = new FileWriter( "R0C.out" );

    final int n = in.nextInt();
    in.skip( in.delimiter() );

    for( int i = 0; i < n; i++ )
      out.write( "Case #" + (i+1) + ": " + countAllRecycledNumbersBetween( in.nextInt(), in.nextInt() ) + "\n" );

    in.close();
    out.close();
  }

  static int countAllRecycledNumbersBetween( final int a, final int b )
  {
    final int digits = 1 + (int)Math.floor( Math.log10( a ) );
    final int firstDigitMult = (int)Math.pow( 10., digits - 1 );

    final boolean[] visited = new boolean[ b - a + 1 ];
    int count = 0;

    for( int i = 0; i <= b - a; i++ )
    {
      if( visited[ i ] ) continue;
      visited[ i ] = true;
      int subCount = 1;

      int x = a + i;

      for( int j = 1; j < digits; j++ )
      {
        x = x / 10 + x % 10 * firstDigitMult;

        if( ( x >= a ) && ( x <= b ) && !visited[ x - a ] )
        {
          visited[ x - a ] = true;
          subCount++;
        }
      }

      count += subCount * ( subCount - 1 ) / 2;
    }

    return count;
  }
}
