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.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;


public class ProbC {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException 
	{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new FileReader("C-small-attempt0.in"));
		BufferedWriter bw = new BufferedWriter(new FileWriter("C-small-attempt0.out"));
		String line = br.readLine();
		int T = Integer.parseInt(line);
		for(int i = 0; i < T; i++)
		{
			line = br.readLine();
			String[] tokens = line.split(" ");
			int A = Integer.parseInt(tokens[0]);
			int B = Integer.parseInt(tokens[1]);
			int cnt = 0;
			for(int j = A; j < B; j++)
			{
				for(int k = j + 1; k <= B; k++)
				{
					String nstr = "" + j;
					String mstr = "" + k;
					if(nstr.length() != mstr.length())
					{
						if(mstr.length() > nstr.length())
							break;
						else
							continue;
					}
					
					String tstr = nstr + nstr;
					if(tstr.contains(mstr))
						cnt++;
				}
			}
			String outputline = "Case #" + (i + 1) + ": " + cnt;
			System.out.println(outputline);
			bw.write(outputline + "\n");
		}
		br.close();
		bw.close();
	}

}
