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 recycle;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;

public class EnvironmentallyFriendly {

	public static void main(String[] args) throws Exception
	{
		BufferedReader br = new BufferedReader(new FileReader(new File("test.txt")));
		BufferedWriter wr = new BufferedWriter(new FileWriter(new File("output.txt")));
		int count = Integer.parseInt(br.readLine());
		int min,max;
		int total;
		String[] vals;
		for(int i=1; i<=count; i++)
		{
			total=0;
			String line = br.readLine();
			vals = line.split(" ");
			min = Integer.parseInt(vals[0]);
			max = Integer.parseInt(vals[1]);
			for(int k =min; k<max; k++)
			{
				total+=numRecyclable(k+"",max);
			}
			wr.write("Case #"+i+": "+total);
			wr.newLine();
			
		}
		wr.close();
	}

	private static int numRecyclable(String num, int max) {
		String newnum;
			
		int total =0,newval,oldval;
		ArrayList<Integer> duplicatecheck = new ArrayList<Integer>();
		for(int i=1; i<num.length(); i++)
		{
			newnum = num.substring(i)+num.substring(0, i);
			newval = Integer.parseInt(newnum);
			oldval = Integer.parseInt(num);
			if(newnum.charAt(0)!='0' && newval<=max
				&& newval > oldval && !duplicatecheck.contains(newval))
			{
				duplicatecheck.add(newval);
				total++;
			}
		}
		return total;
	}
}
