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.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;


public class Recycled {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			System.setIn(new FileInputStream("../C-small-attempt0.in"));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
			System.exit(0);
		}
		
		InputStreamReader inp = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(inp);
		  
		String line = "";
		int inputs = 0;
	  
		try{
			line = br.readLine();
			inputs = Integer.parseInt( line );
		} catch(Exception x){
			System.err.println(x);
			System.exit(1);
		}
		
		String[] data = {};
		for(int i=0; i < inputs; i++){
			int count = 0;
			
			try{
				line = br.readLine();
				data = line.split(" ");
			} catch(Exception x){
				System.err.println(x);
				System.exit(1);
			}
			
			int a = Integer.parseInt(data[0]);
			int b = Integer.parseInt(data[1]);

			
			for(int n=a; n < b; n++){
				String m = ""+n;
				String[] dup = new String[data[0].length()];
				int next = 0; //position to insert into dup
				
				for(int k=0; k < data[0].length(); k++){
					m = Recycled.shuffle(m);
					
					if(a <= n && n < Integer.parseInt(m) && Integer.parseInt(m) <= b){
						boolean found = false;
						for(int x=0; x<next; x++){
							if(dup[x].equals(m)){
								found = true;
							}
						}
						
						if(!found){
							count++;
							dup[next] = m;
							next++;
						}
					}
				}
			}
			
			System.out.println("Case #" + (i+1) + ": " + count);
		}
	}
	
	public static String shuffle(String in){
		return in.substring(1) + in.substring(0, 1);
	}

}
