import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;


public class C {

	public static void main(String[] args) throws NumberFormatException, IOException {
		File file = new File(args[0]);
		BufferedReader reader = new BufferedReader(new FileReader(file));
		PrintStream printer = new PrintStream(new File("C-large.txt"));

		int T = Integer.parseInt(reader.readLine());
		for (int t = 0; t < T; t++) {
			String line = reader.readLine();
			String numStrArr[] = line.split(" ");
			int a = Integer.parseInt(numStrArr[0]);
			int b = Integer.parseInt(numStrArr[1]);
			String bs = b + "";
			long ans = 0;
			for (int n = a; n < b; n++) {
				String s = n + "";
				List<String> sl = new ArrayList<String>();
				for (int i = 1; i < s.length(); i++) {
					String sb = s.substring(i) + s.substring(0, i);
					if (sb.compareTo(bs) <= 0 && sb.compareTo(s) > 0 && !sl.contains(sb)) {
						ans++;
						sl.add(sb);
					}
				}
			}
			printer.println("Case #" + (t+1) + ": " + ans);
		}
		printer.close();
		reader.close();
	}
	
}
