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.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;

public class Problem3 {
	
	
	public static String getNext(String input){
		char last = input.charAt(input.length() - 1);
		input = last + input.substring(0, input.length()-1);
		return input;
	}
	
	public static void main(String[] args) throws IOException{
		BufferedReader in = new BufferedReader(new FileReader("C-small.txt"));
		PrintWriter out = new PrintWriter("C-out.txt");
		int testCases = Integer.parseInt(in.readLine().trim());
		for (int i = 0; i < testCases; i++) {
			StringTokenizer tokenizer = new StringTokenizer(in.readLine());
			int start = Integer.parseInt(tokenizer.nextToken());
			int end = Integer.parseInt(tokenizer.nextToken());
			boolean map[] = new boolean[10000000];
			int count = 0;
			for (int j = start; j <= end; j++) {
				if(map[j]){
					continue;
				}
				String number = j + "";
				int tmpCount = 0;
				Set<Integer> set = new HashSet<Integer>();
				String prev = j + "";
				for (int k = 0; k < number.length(); k++) {
					String nextS = getNext(prev);
					int next = Integer.parseInt(nextS);
					if(next == j){
						continue;
					}
					if(set.contains(next)){
						continue;
					}
					
					if(next >= start && next <= end){
						map[next] = true;
						tmpCount++;
						set.add(next);
					}
					prev = nextS;
				}
				map[j] = true;
				if(tmpCount != 0){
					count += (tmpCount*(tmpCount+1))/2;
				}
			}
			out.println("Case #" + (i+1) + ": " + count);
		}
		out.close();
	}
}
