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.util.HashSet;
import java.util.Scanner;


public class RecycledNumbers 
{
	public static void main(String[] args) {
		
		Scanner mark = new Scanner(System.in);
		
		int t = mark.nextInt();
		int A, B, counter;
		mark.nextLine();
		
		for (int i = 0; i < t; i++) 
		{
			
			A = mark.nextInt();
			B = mark.nextInt();
			counter = 0;
			
			mark.nextLine();
						
			
			// This is for N
			for (int n = A; n < B; n++) 
			{
				
				HashSet<Integer> ans = new HashSet<Integer>();

				String strval = String.valueOf(n).trim();
				int count = strval.length();
				
				for (int j = 1; j < count; j++) 
				{
					String beg = strval.substring(0, j);
					String end = strval.substring(j);
//					System.out.println(beg+end+" "+end+beg);
					
					int m = Integer.parseInt( end.concat(beg) );
					
					if( (m > n) && (m <= B))
						ans.add(m);
					
				}			
				
				counter += ans.size();
			}
	
			System.out.printf("Case #%d: %d\n",i+1,counter);
			
		}
	}
}
