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.FileReader;
import java.util.HashSet;
import java.util.Set;


public class ProblemB {

	public static void main(String[] args) {
		try {
			BufferedReader bufReader = new BufferedReader(new FileReader(args[0]));
		
			int numOfCases = Integer.parseInt(bufReader.readLine());
			int a, b;
			for (int i = 0; i < numOfCases; i++) { // should change 2 to numOfCases!!!
				Set<String> distinctRecycledPairs = new HashSet<String>();
				String line = bufReader.readLine();
				a = Integer.parseInt(line.substring(0, line.indexOf(' ')));
				b = Integer.parseInt(line.substring(line.indexOf(' ') + 1, line.length()));
				//System.out.println("A = " + a + " B = " + b);
				for (int j = a; j <= b; j++) {
					String n = "" + j;
					for (int k = 1; k < n.length(); k++) {
						String possibleM = n.substring(k) + n.substring(0, k);
						if (Integer.parseInt(possibleM) > Integer.parseInt(n)  && Integer.parseInt(possibleM) >= a && Integer.parseInt(possibleM) <= b) {
							// the pair (n,m) may repeat, so use a set
							// there should be a better way though
							distinctRecycledPairs.add(n + " " + possibleM);
						}
					}
				}
				System.out.println("Case #" + (i+1) + ": " + distinctRecycledPairs.size());
			}
			
			bufReader.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}
