import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.io.*;
import java.util.*;

public class RecycledNumbers
{
    static String moveToFront (String nStr, int size){
        return nStr.substring(nStr.length()-size, nStr.length()) + nStr.substring( 0, nStr.length() - size);
    }
    static boolean isRecycle (int n, int m){
        String nStr = Integer.toString( n );
        String mStr = Integer.toString( m );
        for (int size = 1; size < nStr.length(); size++){
            if (moveToFront(nStr,size).equals(mStr))
                return true;
        }
        return false;
    }
    static HashMap<Integer, LinkedList<Integer>> possibleNM (int a, int b)
    {
        String bStr = Integer.toString( b );
        HashMap<Integer,LinkedList<Integer>> map = new HashMap<Integer,LinkedList<Integer>>();
        for ( int i = a; i < b; i++){
            LinkedList<Integer> list = new LinkedList<Integer>();
            if ( Integer.toString(i).length() > bStr.length())
                break;
            for ( int j = i + 1; j <= b; j++)
                list.add( j );
            map.put( i, list);
        }
        return map;
    }
    public static void main (String[] args) throws IOException
    {
        BufferedReader reader = new BufferedReader(new FileReader("recycle.in"));
        int T = Integer.parseInt(reader.readLine());
        int output = 0;
        int a,b;
        HashMap<Integer,LinkedList<Integer>> possibleNM;
        LinkedList<Integer> list;
        for ( int i = 0; i < T; i++){
            StringTokenizer st= new StringTokenizer(reader.readLine());
            a = Integer.parseInt( st.nextToken() );
            b = Integer.parseInt( st.nextToken() );
            possibleNM = possibleNM(a,b);
            for ( int j = a; j <b; j++){
                try{
                    list = possibleNM.get(j);
                    for (int k = 0; k < list.size(); k++){
                        //if (j == 146 && list.get(k) == 461)
                            //System.out.println("j = " + j);
                        if ( isRecycle(j,list.get(k))){
                            //System.out.println(j+","+list.get( k ));
                            output++;
                        }
                    }
                }
                catch (NullPointerException e){
                }
            }
            System.out.println("Case #" +(i+1) + ": " + output);
            output = 0;
        }   
    }
}