import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

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-small.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();
	}
	
}
