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 recycled;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Recycle {
	public static void main(String[] args)throws IOException {
		BufferedWriter saida = new BufferedWriter(new FileWriter("saida.out"));
		File file = new File("C-small-attempt0.in");
		Scanner scan = new Scanner(file);
		int casos;
		String a;
		String b;
		String linha;
		String[] divisao;
		String novo;
		ArrayList<String> list = new ArrayList<String>();
		int tamanhoN;
		casos = Integer.parseInt(scan.nextLine());
		String n;
		String m;
		for (int  i =1; i <= casos;i++){
			saida.write("Case #" + i + ": ");
			int pares = 0;
			linha = scan.nextLine();
			divisao = linha.split("\\s+");

			a = divisao[0];
			b = divisao[1];

			n = a;
			do{
				m = n;
				tamanhoN = n.length();
				for(int j = 0; j < tamanhoN;j++){
					m = desloca(m);
					novo = ("(" + n + "," + m + ") ");
					if(!(list.contains(novo))){
						if(Long.parseLong(a) <= Long.parseLong(n) && Long.parseLong(n) < Long.parseLong(m) && Long.parseLong(m) <= Long.parseLong(b)){
							pares++;
						}
					}
				}
				n = String.valueOf(Long.parseLong(n) + 1);
			}while(Long.parseLong(n) < Long.parseLong(b));
			System.out.println(pares);
			saida.write(pares + "");
			saida.newLine();
		}
		
		if (saida != null){
			saida.flush();
			saida.close();
		}

	}
	
	public static String desloca(String n){
		StringBuffer temp = new StringBuffer(n);
		char primeiro = n.charAt(0);
		for (int j=1; j < temp.length(); j++)
		{
			char c = n.charAt(j);
			temp.setCharAt(j-1, c);
		}
		temp.setCharAt(n.length()-1, primeiro);
		
		n = temp.toString();
		return n;
	}
	
}
