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;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package example2;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class recycle{

    public static void main(String args[]) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int nocases = Integer.parseInt(br.readLine());
        long ans[] = new long[nocases];
        for (int i = 0; i < nocases; i++) {
            String token[] = br.readLine().split(" ");
            long A = Integer.parseInt(token[0]);
            long B = Integer.parseInt(token[1]);
            ans[i] = method(A, B);
        }
        for (int i = 0; i < nocases; i++) {
            System.out.println("Case #" + (i + 1) + ": " + ans[i]);
        }
    }

    private static int circularshift(char[] c, long n, long B) {
        int i = 0;
        long m = 0, m1 = 0;
        int ct = 0;
        int len = c.length;
        for (int k = 0; k < len; k++) {
            char temp = c[0];
            for (i = 1; i < len; i++) {
                c[i - 1] = c[i];
            }
            c[i - 1] = temp;
            String s = String.valueOf(c);
            m = Integer.parseInt(s);
            if (m <= B) {
                if (m1 != m) {
                    if (n < m) {
                        ct++;
                        m1 = m;
                    }
                }
            }
        }
        return ct;
    }

    private static long method(long A, long B) {
        long count = 0;
        for (long i = A; i <= B; i++) {
            long n = i;
            int ct = 0;
            String s = String.valueOf(n);
            char c1[] = s.toCharArray();
            ct = circularshift(c1, n, B);
            count = count + (long) ct;
        }
        return count;
    }
}
