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.*;
import java.lang.*;
import java.io.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
public class main {

	/**
	 * @param args
	 */
	public static String lireString() // lecture d'une chaine
	{
		String ligne_lue = null;
		try {
			InputStreamReader lecteur = new InputStreamReader(System.in);
			BufferedReader entree = new BufferedReader(lecteur);
			ligne_lue = entree.readLine();
		} catch (IOException err) {
			System.exit(0);
		}
		return ligne_lue;
	}
	
	public static Scanner s =new Scanner(System.in);
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		System.out.println("Input");
	
	String filename = "C:\\A-small-attempt1.in";
	String ligne = "";
	int nbrLigne = 0, i=0, j=0,rech=0;
	char cchar=' ';
	File f = new File(filename);
	if (f.exists()) {
		System.out.println("File exists");
	} else {
		System.out.println("File does not exist");
	}
	
String aa="ejpmyslckdxvnribtahwfougqz ";
String bb="ourlangeismpbtdhwyxfckjvzq ";
String  g="";

	try {
		FileInputStream fStream = new FileInputStream(filename);
		BufferedReader in = new BufferedReader(new InputStreamReader(
				fStream));
		if (in.ready()) {
			ligne = in.readLine();
			nbrLigne = Integer.parseInt(ligne);
			String res[]=new String[nbrLigne];
			for (j = 0; j < nbrLigne; j++) {
				ligne = in.readLine();
				
				for (i = 0; i < ligne.length(); i++) {
						g+=bb.charAt(aa.indexOf(ligne.charAt(i)));
					}
				System.out.println("Case #"+(j+1)+": "+g);
				g="";
			}
		}
	}catch (IOException e) {
		System.out.println("File input error");
	}
	}
}
