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.awt.datatransfer.*;
import java.awt.Toolkit;
public class Repeat
{
    private static String inp;
    public Repeat()
    {
        
    }

    public static void main(String[] args)
    {
        Transferable temp = (Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null));
        try {
            inp = (String) temp.getTransferData(DataFlavor.stringFlavor);
        }
        catch (Exception e)
        {
            System.out.println(e);
        }
        System.out.println(inp);
        
        System.out.println("Breakdown >" + inp.substring(inp.indexOf("\n")));
        //int iterations = Integer.parseInt(inp.substring(inp.indexOf("\n")));
        String[] newlineSplit = inp.split("\n");
        int iterations = Integer.parseInt(newlineSplit[0]);
        System.out.println(iterations);
        System.out.println("Solutions:\n\n\n\n");
        //String cases = inp.substring(inp.indexOf("\n"));
        for(int i = 1; i < newlineSplit.length;i++)
        {
            String[] nums = newlineSplit[i].split(" ");
            
           getCount(Integer.parseInt(nums[0]) ,Integer.parseInt(nums[1]), i);
        }
    }
    
    public static void getCount(int a, int b, int caseNum)
    {
        int count = 0;
        while(a <= b)
        {
            String sA = "" + a;
            String sB = "" + b;
            //System.out.println(sA + "   " + sB);
            for(int i = 0; i < sA.length();i++)
            {
                String temp = sA.substring(sA.length() - i-1) + sA.substring(0,sA.length() - i - 1);
                int iT = Integer.parseInt(temp);
                int iA = Integer.parseInt(sA);
                
                //System.out.println(">>[" + temp + "]    " + (iT - iA) );
                if(iT - iA > 0 && iT <= b)
                {
                    count++;
                    //System.out.println(">>>>>>> " + sA + " " + temp + "    " + (iT - iA));
                } 
                //else
                    //System.out.println(">>[" + temp + "]    " + (iT - iA) );
            }
            a++;
        }
        System.out.println("Case #" + caseNum + ": " + count);
        
    }
}
