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.*;
import java.util.ArrayList;





public class CodeJamProblem implements Runnable {
//Problem C
	public boolean InRisultati(ArrayList<String> array, String controllo) {
		for(int i =0; i<array.size();i++) {
			if(array.get(i)==controllo) {
				System.out.println("Risutlato gia contato");
				return true;
			}
		}
		return false;
	}
	
	public int getRisultato(int[] items, int caso) {
		// n=6 s=2 p=8 29 20 8 18 18 21
		int vincitori = 0;
		
		Arrays.sort(items);
		int A = items[0];
	    int B = items[1];
	    int current_n =-1;
	    int current_m =-1;
	    // 1 digit, no solution:
	    if (A<10 && B<10)
	    {
	      return 0;
	    }
	    int[] range = new int[B-A+1];
	    System.out.println("Range LEN:"+ range.length);
	    for(int i=0;i<range.length;i++) {
	    	range[i] = i+A;
	    	if(caso==3)
	    		System.out.print(range[i]+ " ");
	    }
	    int count = 0;
	    
	    ArrayList<String> risultati = new ArrayList<String>();
	    
	    if(caso==3)
	    System.out.println(" ");
	    for (int i = 0; i < range.length; i++)
	    {
	      current_n = range[i];
	      current_m = range[i];
	      String rot_m = ""+current_m;
	      if(caso==3)
	    	  System.out.println("Numero: " +current_m);
	      
	      int len = (range[i]+"").length();
	      for (int j = 0; j < len; j++)
	      {
	    	  if(caso==3)
	    		  System.out.print(" " + rot_m.substring(rot_m.length()-1) + 
	    			  rot_m.substring(0,len-1));
	    	  rot_m = (   
	    			  rot_m.substring(rot_m.length()-1) + 
	    			  rot_m.substring(0,len-1)
	    			  );
	        // A ² n < m ² B
	        if (Integer.parseInt(rot_m) <= B && Integer.parseInt(rot_m) > current_n && Integer.parseInt(rot_m) >= A)
	        {
	        	if(InRisultati(risultati,current_n+rot_m)==false) {
	        		risultati.add(current_n+rot_m);
	        		vincitori++;
	        		if(caso==3)
	        			System.out.println("Inversione Vincente: " + Integer.parseInt(rot_m));
	        	}
	        	
	        }
	      }
	      if(caso==3)
	    	  System.out.println(" ");
	    }
	    if(caso==3)
	    	System.out.println("Winner :"+ vincitori);
		return vincitori;
	}
	
	
	public void solve() throws IOException {
		String test = "small";
		//String test = "large";
		Scanner in = new Scanner(new File("C-small-attempt0.in")).useDelimiter(System.getProperty("line.separator")); 
        PrintWriter out = new PrintWriter(new File("C-small-attempt0.out"));
        
        int lineNum = 0;
        int testNum = 0;
        int totalTests = 0;
        int[] points = new int[1];
        while (in.hasNext()) {
        	String currentLine = in.next();
        	if(lineNum ==0 ) {
        		//Do Nothing!
        		totalTests = Integer.parseInt(currentLine);
        		lineNum++;
        		continue;
        	}
        	if(lineNum>0) {
        		String[] x = currentLine.split(" ");
        		points = new int[x.length];
                for(int i = 0;i<x.length;i++) {
               		points[i] = Integer.parseInt(x[i]);
                }
        		int risultato = getRisultato(points, testNum);
        		if(testNum==3)
        			System.out.println("Case #"+(testNum+1)+": "+ risultato);
        		out.println("Case #"+(testNum+1)+": "+ risultato);
        		testNum++;
        	}
            lineNum++;
        }
        in.close();
        out.close();
        
		
	}
	public void run() {
        try {
            solve();
        } catch (IOException e) {
            System.exit(1);
        }
    }

    public static void main(String[] s) {
        new Thread(new CodeJamProblem()).start();
    }
	
	
	
}
