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;
	}
}

package compete;

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

public class Recycle {
	private static void print(String sth) {
		System.out.println(sth);
	}

    private static int recycle(int A, int B) {
        
        int n=0;
        for (int i=A;i<B;i++) {
            String t = i+"";

            ArrayList<Integer> l = new ArrayList<Integer>();
            for (int k=0;k<t.length();k++) {
                char c = t.charAt(0);
                t = t.substring(1)+c;	
                if (t.charAt(0)=='0') continue;
                int ti = Integer.parseInt(t);
                if (ti>B||ti<=i) continue;
                if (!l.contains(ti)) {
                	l.add(ti);
                	n++;
                }
            }
        }

        return n;
    }

	public static void main(String args[]) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("input.txt"));
		
		int num = Integer.parseInt(in.readLine());
		
		for (int i=0;i<num;i++) {
			String sentence = in.readLine();
			Scanner s = new Scanner(sentence);
			
			int A = s.nextInt();
			int B = s.nextInt();
			
			print("Case #"+(1+i)+": "+recycle(A,B));
		}	
	}
}
