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.util.Scanner;
public class RecycledNumbers {
	public static void main (String [] args) {
		Scanner sc = new Scanner (System.in);
		int x = sc.nextInt();
		for (int i = 0; i < x; i++) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			int count = 0;
			for (int j = a; j < b; j++) {
				for (int k = j; k <= b; k++) {
					String one = new Integer(j).toString();
					String two = new Integer(k).toString();
					if (j < k && one.length() == two.length()) {
						for (int l = 0; l < one.length(); l++) {
							one = one.charAt(one.length()-1) + one.substring(0, one.length()-1);
							if (one.equals(two)) {
								count++;
								break;
							}
						}
					}
				}
			}
			System.out.println("Case #" + (i+1) + ": " + count);
		}
	}
}
