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.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;


public class RecycledNumbers {

	public static void main(String [] args) throws NumberFormatException, IOException {
		java.io.BufferedReader r = new java.io.BufferedReader(
				new java.io.FileReader(
						"C:\\Users\\AhmedMTM\\Desktop\\C-small-attempt0.in"));
		int no = Integer.parseInt(r.readLine());
		int[] results = new int[no];
		Arrays.fill(results, 0);
		for (int t = 0; t < no; t++) {
			String[] input = r.readLine().split(" ");

			int A = Integer.parseInt(input[0]);
			int B = Integer.parseInt(input[1]);
			
			for(int j=B; j>A; j--) {
				for(int k=A; k<j; k++) {
					String one = ""+k;
					String two = ""+j;
					if(one.length() == two.length()) {
						for(int l=0; l<one.length(); l++) {
							if(one.equals(two)) {
								//System.out.println(one);
								results[t]++;
							}
							one = one.substring(one.length()-1, one.length())+one.substring(0, one.length()-1);
						}
					}
				}
			}
			
			try {
				FileWriter outFile = new FileWriter(
						"C:\\Users\\AhmedMTM\\Desktop\\output.txt");
				PrintWriter out = new PrintWriter(outFile);
				for (int i = 0; i < results.length; i++) {
					out.println("Case #"+(i+1)+": "+results[i]);
				}

				out.close();
			} catch (IOException e) {
				e.printStackTrace();
			}

		
		}
	}
}
