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.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;

public abstract class Solution{
	protected Problem problem;
	private String problemFileName;
    
	abstract public StringBuffer solve();

    public Solution(String problemFileName){
		this.problemFileName = problemFileName;
		problem = new Problem(problemFileName);
	}
	
	public void saveToFile(StringBuffer buffer){
		try {
			File f = new File(problemFileName);
			String fileout = stripExtension(f.getName())+".out";
			BufferedWriter out = new BufferedWriter(new FileWriter(fileout));
			String outText = buffer.toString();
			System.out.println(outText);
			out.write(outText);
			out.close();
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}		
	}	
	
    static String stripExtension (String str) {
        if (str == null) return null;
        int pos = str.lastIndexOf(".");
        if (pos == -1) return str;
        return str.substring(0, pos);
    }	
        
}

class Problem{
	private String[] cases; 

	public Problem(String filename){
		// TODO Auto-generated method stub
		try{
			// Open the file that is the first 
			// command line parameter
			FileInputStream fstream = new FileInputStream(filename);
			// Get the object of DataInputStream
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			int totalCase = Integer.parseInt(br.readLine());
			int i = 0;
			cases = new String[totalCase];
			//Read File Line By Line
			while ( (i<totalCase) && (strLine = br.readLine()) != null)   {
				// Print the content on the console
				if(strLine.length()>0){
					cases[i] = strLine;
					i++;
				}
			}
			//Close the input stream
			in.close();
		}catch (Exception e){//Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
	}

	public int count(){
		return cases.length;
	}
	
	public String getCase(int index){
		return cases[index];
	}
}