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.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;


public class RecycledNumber {
	
//	static HashMap<Integer, ArrayList<Integer>> cache;

	public static void main(String[] args) throws IOException{
		
		String path = "C:\\Users\\Rapol Tongchenchitt\\Documents\\CodeJam\\";
		String year = "Qual2012\\";
		
		String test = "input.txt"; String outPath = "output.txt";
		String a = ""; String A = "";
		String b = ""; String B = "";
		String c = "C-small-attempt0.in"; String C = "C-small-attempt0.out";
		String d = ""; String D = "";
		
		String inName = path+year+c;
		String outName = path+year+C;
		
		Scanner in = new Scanner(new FileInputStream(inName));
		BufferedWriter out = new BufferedWriter(new FileWriter(outName));
		
		int caseCount = in.nextInt(); int currentCase = 0;
		
		while(currentCase++ < caseCount){
			
			int minNum = in.nextInt();
			int maxNum = in.nextInt();
			int ans = 0;
			
			for( int i = minNum; i <= maxNum; i++){
				ans += perform(i, minNum, maxNum);
			}
			
			out.write("Case #" + currentCase + ": " + ans);
			out.newLine();
		}
		
		out.close();
		
	}

	private static int perform(int in, int left, int right) throws IOException{
		if(in < 10){
			return 0;
		}
		
		HashSet<Integer> set = new HashSet<Integer>();
		int ans = 0;
		String now = in + "";
		for(int i = 1; i < now.length(); i++){
			if(now.charAt(i) >= now.charAt(0)){
				int shift = Integer.parseInt(now.substring(i) + now.substring(0,i));
				if(shift > in &&  shift <= right && shift >= left && !set.contains(shift)){
					ans++;
					set.add(shift);
				}
				
			}
		}
		
		return ans;
	}

}
