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.BufferedInputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;


public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {

		BufferedReader inFile = null;
		try {
			inFile = new BufferedReader(
				    new InputStreamReader(
				        new BufferedInputStream(new FileInputStream("C-small-attempt1.in")),
				        "UTF-8"
				    )
				);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}

		int numCases = 0;
		List<Integer> recycledNumbersPerCase = new ArrayList<Integer>();
		try {
			numCases = Integer.parseInt(inFile.readLine());
			for (int caseNum = 0; caseNum < numCases; caseNum++) {	
				
				String[] words = inFile.readLine().split(" ");
				long A = Integer.parseInt(words[0]);
				long B = Integer.parseInt(words[1]);
				
				int numDigits = (int) Math.ceil(Math.log10(A+1));
				// make sure A doesn't start with leading 0
				int numDigitsB = (int) Math.ceil(Math.log10(B));
				numDigits = (numDigits > numDigitsB) ? numDigits : numDigitsB;
				
				int matchedRecycledNumbers = 0;
				
				for (long n = A; n < B-1; n++) {
					/*
					 * rotate digits and look for all the numbers
					 * bigger than original number and in given interval 
					 */
					long rotatedNum = n;
					while(true) {
						rotatedNum = rotateDigitsRight(rotatedNum, numDigits);
						if (rotatedNum == n) break;
						
						if(rotatedNum < A || B < rotatedNum) continue;
						if(rotatedNum < n) continue; // don't count twice
						
						// number is in interval
						matchedRecycledNumbers++;
					}
					
				}
				recycledNumbersPerCase.add(matchedRecycledNumbers);	
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		try {
			BufferedWriter bw = new BufferedWriter(
					new OutputStreamWriter(
							new FileOutputStream("C-small1.out.txt"), "UTF-8"
							)
					);
			
			for (int caseNum = 0; caseNum < numCases; caseNum++) {
				bw.append("Case #" + (caseNum+1) + ": " + recycledNumbersPerCase.get(caseNum));				
				bw.newLine();
			}
			bw.flush();
		} catch (IOException e) {
			e.printStackTrace();
		}
	
	}

	private static long rotateDigitsRight(long number, int numDigits) {
		long biggerRightPart = number / 10;
		long transferingRightmostNum = number % 10;
		long result = (transferingRightmostNum * (int) Math.pow(10, numDigits-1)) + biggerRightPart;
		return result;
		
	}

}
