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.abuhijleh.googlejam;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class GoogleJam {
	static final String code = "yhesocvxduiglbkrztnwjpfmaq";

	public static void main(String[] args) {
		File input = new File("inputFile");
		String[] result;
		Scanner scan;
		try {
			scan = new Scanner(input);
			result = new String[scan.nextInt()];
			scan.nextLine();
			for (int i = 0; i < result.length; i++) {
				result[i] = "Case #" + (i + 1) + ": "
						+ solve(scan.nextInt(), scan.nextInt());
				scan.nextLine();
			}
			System.out.println("Output");
			for (int i = 0; i < result.length; i++)
				System.out.println(result[i]);
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	private static int solve(int x, int y) {
		int count = 0;
		String digits = x + "";
		int length = digits.length();
		int pa = (int) Math.pow(10, length - 1);
		for (int i = x; i <= y; i++) {
			int temp = i;
			int[] temps = new int[length];
			for (int j = 0; j < length ; j++) {
				temp = (temp % 10) * pa + (temp / 10);
				if (temp > i && temp <= y){
					if(check(temps,temp)){
						temps[j] = temp;
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean check(int[] temps, int temp) {
		for(int i =0 ;i<temps.length;i++)
			if(temps[i] == temp)
				return false;
		return true;
	}
}
