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 Problem3 {
	public Problem3(){
		Scanner in = new Scanner(System.in);
		int inputs = in.nextInt();
		for(int i=0; i<inputs; i++){
			int A = in.nextInt();
			int B = in.nextInt();
			int pairs = calc(A,B);
			System.out.println("Case #"+(i+1)+": "+pairs);
		}
	}
	
	public int calc(int low, int high){
		int pairs = 0;
		for(int i=low; i<=high; i++){
			for(int j=i+1; j<=high; j++){
				boolean same = true;
				String num1 = ""+i;
				String num2 = ""+j;
				if(num1.length() == num2.length()){
					for(int k=0; k<num1.length(); k++){
						if(!(num2.contains(""+num1.charAt(k)))){
							same = false;
						}
					}
					for(int k=0; k<num2.length(); k++){
						if(!(num1.contains(""+num2.charAt(k)))){
							same = false;
						}
					}
					if(same){
						same = false;
						String prev = "";
						for(int k=num1.length()-1; k>=0; k--){
							String remain = "";
							if(num2.startsWith(prev+num1.charAt(k))){
								same = true;
								prev = prev+num1.charAt(k);
							}
							for(int l=0; l<k; l++){
								remain = remain+num1.charAt(l);
							}
							if(!(num2.contains(remain))){
								same = false;
							}
						}
					}
					if(same==true){
						pairs++;
					}
				}
			}
		}
		return pairs;
	}
	
	public static void main(String[] args){
		new Problem3();
	}
}
