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.*;
import java.util.*;
 
public class test {

    public static void main(String[] args) throws IOException {
 
        // Location of file to read

	functions aa = new functions();
        File file = new File("input.txt");
	Writer output = new BufferedWriter(new FileWriter("output.txt"));
	int i = 1;
	int answer = 0;
	String A = "";
	String B = "";
	int j = 0;
	int n = 0;
	
        try {
 
            Scanner scanner = new Scanner(file);
 	    n = Integer.parseInt((String)scanner.nextLine());
 	    
            while (scanner.hasNextLine()) {
            	A = "";
            	B = "";
                String line = scanner.nextLine();
                while(line.charAt(j) != ' '){
			A = A + line.charAt(j);
			j++;
                }
                j++;
                while(j < line.length()){
			B = B + line.charAt(j);
			j++;
                }
		j = 0;
                answer = aa.solve(A,B);
			if(i < n)
				output.write("Case #" + i +": "+ answer +"\n");
			else
				output.write("Case #" + i +": "+ answer);
		i++;
		
            }
            scanner.close();
            output.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
       }
      }
