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.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class A {
	
	static int findRecycledNumbers(int a, int b) {
		int count = 0;
		boolean[] arr = new boolean[b+1];
		
		for (int i = a; i <= b; i++) {
			String num = Integer.toString(i);
			for (int k = 0; k < arr.length; k++) arr[k] = false;
			for (int j = 1; j < num.length(); j++) {
				String dNum = num.substring(j) + num.substring(0, j);
				int x = Integer.parseInt(dNum);
				if (x >= a && x <= b && !arr[x]) arr[x] = true;
				else continue;
				if (x >= a && x <= b && i < x) {
					System.out.println(a + " - " + b + ": " + i + " " + x);
					count++;
				}
			}
		}
		
		return count;
	}
	
	public static void main(String args[]) throws IOException {		
		Scanner sc = new Scanner(new File("input"));
		FileWriter fstream = new FileWriter("output");
		BufferedWriter out = new BufferedWriter(fstream);
	
		
		int n = sc.nextInt();
		for (int i = 0; i < n; i++) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			out.write("Case #" + (i+1) + ": " + findRecycledNumbers(a, b) + "\n");
		}
		
		out.close();
	}
}
