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 QR_2012;

import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.TreeSet;

public class C {

	static BufferedWriter writer;

	public static void main(String[] args) throws IOException {
		writer = new BufferedWriter(new FileWriter("output.out"));
		Scanner reader = new Scanner(new FileReader("input.in"));
		int nt = reader.nextInt();
		reader.nextLine();
		for(int tc = 1; tc <= nt; tc++) {
			writer.write("Case #" + tc + ": ");
			int a = reader.nextInt();
			int b = reader.nextInt();
			int total = 0;
			for(int n = a; n < b; n++) {
				int count = count(n, b);
				total += count;
			}
			writer.write(Integer.toString(total));
			writer.newLine();
		}
		writer.close();
	}

	static int count(int n, int b) {
		int count = 0;
		String s = Integer.toString(n);
		int l = s.length();
		TreeSet<String> T = new TreeSet<String>();
		for(int i = 1; i < l; i++) {
			s = s.substring(1) + s.charAt(0);
			if(!T.contains(s)) {
				T.add(s);
				int m = Integer.parseInt(s);
				if(n < m && m <= b) {
					count++;
				}
			}
		}
		return count;
	}


}
