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.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;


public class recycle {
	public static void main(String[] args) {
		recycle rec = new recycle();
         rec.readFile("test.txt");
	}

	public void readFile(String filename){
	int i = 1;
	BufferedReader reader = null;
	try {
		reader = new BufferedReader(new 
				FileReader(filename));
	} catch (FileNotFoundException e) {
		e.printStackTrace();
	}
	String newLine;
		try {
			newLine = reader.readLine();
			while ((newLine = reader.readLine()) != null) {
				evalline(newLine,i);
				i++;
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	
	}
	
	public void evalline(String line,int casenum){
		Scanner sc = new Scanner(line);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int tot = 0;
		
		System.out.print("Case #" + casenum + ": ");
		for(int x = n; x < m; x++){
			for(int y = x+1; y<= m; y++){
				if(check(x,y)){
					tot++;
				}
			}
		}
		
		System.out.println(tot);
			
		
	}
	
	public boolean check(int x, int y){
		String str1 = Integer.toString(x);
		String str2 = Integer.toString(y);
		int len = str1.length();
		for(int z = 0; z < len; z++){
			int a = 0;
			int b = z;
			while(str1.charAt(a) == str2.charAt(b % len)){
				a++;
				b++;
				if(z == (b % len)){
					return true;
				}
			}
		}
		return false;
		
	}
}
	
