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.util.ArrayList;
import java.util.Scanner;


public class DancingWithTheGooglers {
	public static void main(String[] args){		
		Scanner keyin=new Scanner(System.in);
		int T=keyin.nextInt();
		keyin.nextLine();
		int caseCount=0;
		while ((T--)!=0){
			int A=keyin.nextInt();
			int B=keyin.nextInt();
			int count=0;
			caseCount++;
			ArrayList<String> result=new ArrayList<String>();
			for (int n=A; n<=B; n++){
				for (int m=n+1; m<=B; m++){
					String strN=Integer.toString(n);
					String strM=Integer.toString(m);
					for (int i=1; i<strN.length(); i++){
						String temp="";
						temp=strN.substring(i)+""+strN.substring(0,i);
						if (strM.equals(temp) && Integer.parseInt(strN)<Integer.parseInt(strM)){
							boolean isDuplicate=false;
							if (result!=null){
								for (int arrayIndex=0; arrayIndex<result.size(); arrayIndex++){
									if (result.get(arrayIndex).equals("("+strN+", "+strM+")")){
										isDuplicate=true;
									}
								}
							}
							if (isDuplicate==false){
								//System.out.println("("+strN+", "+strM+")");
								result.add("("+strN+", "+strM+")");
								count++;
							}
						}
					}
				}
			}
			System.out.println("Case #"+caseCount+": "+count);
		}
	}
}
