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.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;


public class RecycledNumbers {
	
	public static void main(String []args) throws IOException{
		BufferedReader reader = new BufferedReader(new FileReader(new File("C-small-attempt0.in")));
		BufferedWriter writer = new BufferedWriter(new FileWriter(new File("out")));
		int T = Integer.parseInt(reader.readLine());
		
		for(int i = 0;i<T;i++){
			HashSet<ValuePairs> set = new HashSet<ValuePairs>();
			
			String[] limits = reader.readLine().split(" ");
			int A = Integer.parseInt(limits[0]);
			int B = Integer.parseInt(limits[1]);
	
			for(int j = A;j<B;j++){
				LinkedList<Character> list = new LinkedList<Character>();
				String num = ""+j;
				for(int k = 0;k<num.length();k++){
					list.add(num.charAt(k));
				}
				for(int k = 1;k<num.length();k++){
					Collections.rotate(list, 1);
					String temp = "";
					for(int m = 0; m < num.length(); m++){
						temp += list.get(m);
					}
					int result = Integer.parseInt(temp);
					if(result>j&&result<=B){
						set.add(new ValuePairs(j,result));
						System.out.println(j+" "+result+"\n");
					}
				}
			}
			
			writer.write("Case #"+(i+1)+": "+set.size()+"\n");
			writer.flush();
		}
	}

}
