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 ProblemB {
   
       public static void main(String[] args) throws Exception {
      
         String filename = "C-small-attempt0.in";
         Scanner sc = new Scanner(new File(filename) );
      
         System.setOut(new PrintStream(new FileOutputStream("BSolution.txt")));
         int cases = Integer.parseInt(sc.next());
         sc.nextLine();
         
         for(int l = 1; l <= cases; l++) {
          	  
            int A = sc.nextInt();
            int B = sc.nextInt();
            
            int counter = 0;	
            
            for(int m = B; m > A; m--) {
            
               for(int n = A; n < m; n++) {
               
                  if(isRecycled(n,m))
                     counter++;
               }
            }
         	
            System.out.print("Case #" + l + ": " + counter);
            System.out.println();
         }
      }
       public static boolean isRecycled(int n, int m) {
      
         String str = Integer.toString(n);
      	
         if(Integer.toString(n).length() != Integer.toString(m).length()) 
            return false;
         else {
            for(int k = 1; k < str.length(); k++) {
               String temp = "";
                  
               temp = str.substring(str.length() - k, str.length()) + str.substring(0, str.length() - k);
                 
               if(m == Integer.parseInt(temp))
                  return true;
               
            } 
         }
         return false;
      }
   }