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.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;


public class recycle {
	static int count=0;
	static int A = 0;
	static int B = 0;
	
	public static void permutes(String start){
		int n = Integer.valueOf(start);
		for(int i=1;i<start.length();i++){
			String current = start.substring(0, i);
			String rest = start.substring(i, start.length());
			String finish = rest+current;
			int m = Integer.valueOf(finish);
			if(n==m){
				break;
			}
				
			if(m<=B && n<m){
				count++;
			
			}
		}
		
	}
	public static void main(String args[])
	 {
		String line;
		  int i=0;
		  try{
		  FileInputStream fstream1 = new FileInputStream("Ctest.txt");
		  DataInputStream in1 = new DataInputStream(fstream1);
		  BufferedReader br1 = new BufferedReader(new InputStreamReader(in1));
		  FileWriter fw = new FileWriter("outC.txt");
		  BufferedWriter out = new BufferedWriter(fw);
		 
		  while ((line = br1.readLine()) != null)   {  
		  		

		  		if(i!=0){
		  			String outpt = "Case #"+i+": ";
		  			String brkline[]=line.split(" ");
		  			A = Integer.valueOf(brkline[0]);
		  			//System.out.println("A= "+A);
		  			B = Integer.valueOf(brkline[1]);
		  			//System.out.println("B= "+B);
		  			
		  			for(int p=A;p<=B;p++){
		  				permutes(String.valueOf(p));
		  			}
		  			outpt = outpt+count;		
		  			out.write(outpt+"\n");
		  			System.out.println(outpt);
		  			}
		  		
		  		i++;
		  		count=0;
		  	  }
		  
		  //Close the input stream
		  in1.close();
		  //Close the output stream
		  out.close();
		    }catch (Exception e){//Catch exception if any
		  System.err.println("Error: " + e);
		  }
/////////////////////////////////////////////////				
		
	 }
}
