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.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;


public class RecycledNumbers {

	public static void main(String[] args){
		try{
			// Open the file that is the first 
			// command line parameter
			FileInputStream fstream = new FileInputStream(args[0]);
			// Get the object of DataInputStream
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			//Read File Line By Line
			int numTest = Integer.parseInt(br.readLine());
			for(int i = 0; i < numTest; i ++){
				String str = br.readLine();
				String numbers[] = str.split(" ");
				int count = recycledNumbers(Integer.parseInt(numbers[0]),Integer.parseInt(numbers[1]));
				int x = i + 1;
				System.out.println("Case #" + x + ": " + count);
				
			}
			//Close the input stream
			in.close();
		}catch (Exception e){//Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
		
		
	}
	
	public static int recycledNumbers(int min, int max){
		int digits = Integer.toString(min).length();
		int current = min;
		int count = 0;
		while(current <= max){
			ArrayList<Integer> newNumbers = new ArrayList<Integer>();
			for(int i = 1; i < digits; i++){
				String movedDigits = Integer.toString(current).substring(i);
				String remainingDigits;
				if(i == 1){
					remainingDigits = Character.toString(Integer.toString(current).charAt(0));
				}
				else{
					remainingDigits = Integer.toString(current).substring(0,i);
				}
				int newNumber = Integer.parseInt(movedDigits + remainingDigits);
				if(newNumber != current && newNumber <= max && newNumber >= min ){
					boolean alreadyExists = false;
					for(Integer no : newNumbers){
						if(no.intValue() == newNumber){
							alreadyExists = true;
						}
					}
					if(!alreadyExists){
						if(current < newNumber){
							count ++;
							//System.out.println("(" + current + "," + newNumber + ")");
							newNumbers.add(new Integer(newNumber));
						}
					}
				}
				
			}
			current++;
		}
		
		return count;
	}
	
}




