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;
	}
}

package com.numbers.recycle.algo;

import java.util.ArrayList;
import java.util.List;

public class Recycler {
	
	public int getRecycledNumberCount(String[] wordsInOrder){
		int beginNumber = Integer.valueOf(wordsInOrder[0]);
		int endNumber = Integer.valueOf(wordsInOrder[1]);
		int counter = 0;
		for(int current = beginNumber ; current <= endNumber ; current++)
		{
			List<Integer> recycledNumbers = getRecycledNumbers(current);
			for(int recycledNumber: recycledNumbers)
			{
				if(beginNumber <= current 
						&& current < recycledNumber
						&& recycledNumber <= endNumber)
					counter ++;
			}
		}
		return counter;
	}

	private List<Integer> getRecycledNumbers(int i) {
		List<Integer> returnList = new ArrayList<Integer>();
		String number = String.valueOf(i);
		int length = number.length();
		for(int counter = 1; counter < length; counter++)
		{
			number = number.charAt(length - 1) + number.substring(0,length - 1);
			int numValue = Integer.valueOf(number);
			if(!returnList.contains(numValue))
			returnList.add(Integer.valueOf(number));
		}
		return returnList;
	}

}
