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.IOException;
import java.io.PrintWriter;

public class RecycledNumbers {
	
	public static void main(String[] args) {
		RecycledNumbers bt = new RecycledNumbers();
		bt.solveProblem();
		
	}
	public void solveProblem() {
		String[] testCases = ReadFile.readFile("C:/Users/Pablo/Documents/codejam/RN.in");
		int i = 0;
		StringBuilder res = new StringBuilder();
		for (String testCase : testCases) {
			if(!res.toString().equals("")) {
				res.append("\n");
			}
			res.append(processTestCase(testCase, ++i));
		}
		System.out.print(res.toString());
		try {
			PrintWriter pw = new PrintWriter("C:/Users/Pablo/Documents/codejam/RN.out");
			pw.print(res.toString());
			pw.close();
		} catch (IOException e) {
			System.out.println("Error writing file!!");
		}
	}
	
	private String processTestCase(String testCase, int caseNum) {
		Long a = Long.valueOf(testCase.split(" ")[0]);
		Long b = Long.valueOf(testCase.split(" ")[1]);
		Long lim = Double.valueOf(Math.floor((a + b)/ 2d)).longValue() + 1L;
		
		int cantNumbers = 0;
		
		if(a.compareTo(10L) >= 0) {
			cantNumbers = verifNumbers(b, a, 0);
		} 
		
		return "Case #" + caseNum + ": " + cantNumbers;
	}
	
	private int verifNumbers(Long b, Long num, int cantNumbers) {

		if(num.compareTo(b) < 0) {
			String n = num.toString();
			n = n.replaceAll(String.valueOf(n.charAt(0)), "");

			if(!n.equals("")) {
				for(int i = 1; i <= num.toString().length(); i++) {
					String s = num.toString().substring(num.toString().length() - i, num.toString().length()) + 
					num.toString().substring(0, num.toString().length() - i);

					Long tmp = Long.valueOf(s);

					if(tmp.compareTo(b) <= 0 && tmp.compareTo(num) > 0) {
						cantNumbers ++;
					}
				}
			}

			cantNumbers = verifNumbers(b, num + 1L, cantNumbers);
		}
		return cantNumbers;
	}	
}
