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.Scanner;
import java.util.Vector;


public class ThreadDispatcher{
	
	private static final int CORES = 8;
	private Vector<SolveThread> threads = new Vector<SolveThread>(CORES);
	Scanner scan = new Scanner(System.in);
	private int curCase = 0, T = 0;
	
	public ThreadDispatcher(){
		System.out.println("Paste input for qualification round - problem C");
		T = Integer.parseInt(scan.nextLine());
		for(int i = 1; i <= CORES; i++){
			if(i <= T){
				String line = scan.nextLine();
				curCase++;
				String[] limitsStr = line.split("\\s"); 
				int A = Integer.parseInt(limitsStr[0]);
				int B = Integer.parseInt(limitsStr[1]);
				SolveThread st = new SolveThread(A, B, curCase,this);
				threads.add(st);
				st.run();
			}
		}
	}
	
	public void finish(SolveThread thread){
		System.out.println("Case #" + thread.casenb + ": " + thread.pairs);
		threads.remove(thread);
		if(curCase < T){
			String line = scan.nextLine();
			curCase++;
			String[] limitsStr = line.split("\\s"); 
			int A = Integer.parseInt(limitsStr[0]);
			int B = Integer.parseInt(limitsStr[1]);
			SolveThread st = new SolveThread(A, B, curCase,this);
			threads.add(st);
			st.run();
		}
	}
	
	public static void main(String[] args){
		ThreadDispatcher td = new ThreadDispatcher();
	}
}
