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.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

public class MainC {

	final static String FNAME = "C-small-attempt0";

	public BufferedReader in;

	public PrintWriter out;

	void open() throws IOException {
		in = new BufferedReader( new FileReader( new File( FNAME+".in"  ) ) );
		out = new PrintWriter( new File( FNAME + ".out" ) );
	}

	void close() throws IOException {
		out.close();
	}
	
	private Boolean isRecycled(int a,int b)
	{
		String A=String.valueOf(a);
		String B=String.valueOf(b);
		
		
		if(A.length()!=B.length()) return false;
		for(int i=0;i<A.length();i++)
		{
			StringBuilder Anew=new StringBuilder();
			Anew.append(A.substring(i, A.length()));
			Anew.append(A.substring(0, i));
			if(B.contains(Anew.toString())) return true;
		}
		
		return false;
	}
	

	void run() throws IOException {
		
		Integer N=Integer.parseInt(in.readLine()) ;
		
		for(int i=1;i<=N;i++)
		{
			StringBuffer res=new StringBuffer();
			res.append("Case #" + i + ": ");
			String line=in.readLine();
			String nubers[]=line.split(" ");
		    int a=Integer.parseInt(nubers[0]);
		    int b=Integer.parseInt(nubers[1]);
			int c=0;
		    
			for(int j=a;j<=b;j++)
				for(int k=j+1;k<=b;k++)
			{
			
				if(isRecycled(j,k))
				{
					c++;
				}
				
			}
			res.append(c);
			out.println(res.toString());
		}
	}

	public static void main( String[] args ) throws IOException {
		new Thread() {

			public void run() {
				try {
					MainC solution = new MainC();
					solution.open();
					solution.run();
					solution.close();
				} catch ( Exception e ) {
					throw new RuntimeException( e );
				}
			}
		}.start();
	}
}
