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;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package qualificationRound2012;

import java.io.File;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 *
 * @author AHMED
 */
public class RecycledNumbers {
    public static void main(String[] args)throws Exception{
        RecycledNumbers r = new RecycledNumbers();
        //System.out.println(isRecycledPair(12345 , 51234));
        //System.out.println("0123456".substring(2,6));
        //414144414
        //441414441        
    }
    
    public RecycledNumbers() throws Exception{
        Scanner sc = new Scanner(new File("C-small-attempt0.in"));
        PrintWriter pin = new PrintWriter(new File("C-small-attempt0.out"));
        int T = Integer.parseInt(sc.nextLine());
        int A,B;
        int counter = 0;
        int x = 0;
        for(int testCaseIndex = 1 ; testCaseIndex <=T ; testCaseIndex++){
            A = sc.nextInt();
            B = sc.nextInt();
            //System.out.println(A+" "+B);
            for(int n = A ; n <= B ;n++){
                for(int m = (n+1) ; m<=B ;m++){
                    //pin.print(n+" "+m);
                    if(isRecycledPair(n,m))counter++;  
                }
            }
            pin.print("Case #"+testCaseIndex+": "+counter);
            if(testCaseIndex!=T)pin.print("\n");
            counter = 0;
        }
        pin.close();
        sc.close();
    }
    
    private static boolean isRecycledPair(int n, int m){
        if(n<10 && m<10)return false;//all digits < 10 cannto be recycled.
        
        String nString = Integer.toString(n);
        String mString = Integer.toString(m);
        int length = nString.length();
        int starting_mIndex = 0;
        String temp;
        
        for(int index = 0 ; index < length ; index++){
            for(starting_mIndex = 0 ; starting_mIndex < length ; starting_mIndex++){
                temp = mString.substring(starting_mIndex);
                temp+=mString.substring(0, starting_mIndex);
                if(temp.equals(nString))return true;
            }
        }
        
        return false;
        /*
        String nString = Integer.toString(n);
        String mString = Integer.toString(m);
        int length = mString.length();
        int nStringIndex;
        int mStrinIndex = mString.indexOf(nString.charAt(0)+"");//starting index
        
        //System.out.println(mStrinIndex);
        
        if(mStrinIndex == -1)return false;
        
        for(nStringIndex = 0 ; nStringIndex < length ; nStringIndex++){
            if(nString.charAt(nStringIndex)!=mString.charAt(mStrinIndex))return false;
            mStrinIndex = (mStrinIndex+1)%length;
        }
        
        return true;*/
    }
}
