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.net.*;
import java.io.*;
import java.lang.*;

public class RecycledNumbers {
    public static void clear(int[] arr){
    	for(int i=0; i<30; i++)
    		arr[i] = -1;		
    }
    public static boolean checkEntry(int x, int[] arr){
    	for(int i=0; i<30; i++) {
    		if(x == arr[i])
    			return true;
    	}
    	return false;	
    }
    
    
    public static void main(String[] args) throws IOException {
    
    String[] spl;
    int counter = 1;
    int count = 0;
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		String input;
		int a,b,e = 0;
		String xform;
		int[] arr = new int[30]; int arrCounter = 0;
		clear(arr); 
		
		while((input = in.readLine()) != null){
			spl = input.split(" ");
			a = Integer.parseInt(spl[0]);
			b = Integer.parseInt(spl[1]);
			int bLength = (Integer.toString(b)).length();
			for(int i=a; i<b; i++) {
				clear(arr); arrCounter = 0;
				xform = Integer.toString(i);
				int l = xform.length();
				//System.out.println("number:" + xform + '\t' + "length:" + l);
				for(int j=1; j<l; j++) {	
					for(int k=0; k<l; k++){
						int index = (k + j) % l;
						if(xform.charAt(index) < xform.charAt(k))
							break;
						else if(xform.charAt(index) > xform.charAt(k)) {
							if( (bLength > l) || (b >= (e = Integer.parseInt(xform.substring(j) + xform.substring(0 , j)))) ) {    
								//System.out.println("number:" + xform + '\t' + Integer.parseInt(xform.substring(j) + xform.substring(0 , j)));
								if(!checkEntry(e , arr)){
									count++;
									arr[arrCounter] = e;
									arrCounter++;
								}
								break;
							}
							else
								break;
						}
						else
							continue;
					}
				}
			}
			
			System.out.println("Case #" + counter + ": " + count );
			counter++; count = 0;
		}
		
		    

}}
