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 org.weiwei.recyclenumber;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * Created with IntelliJ IDEA.
 * User: ding
 * Date: 12-4-14
 * Time: ä¸å1:57
 * To change this template use File | Settings | File Templates.
 */
public class FileProcessor {
    public static void testOutput(String input, String output) throws IOException {
        BufferedReader reader = new BufferedReader(new FileReader(input));
        PrintWriter pw = new PrintWriter(output);
        String line = reader.readLine();
        int total = Integer.parseInt(line.trim());
        line = reader.readLine();
        int i = 1;
        while(line != null) {
            String[] elems = line.trim().split(" ");
            RecyleBin bin = new RecyleBin(Integer.parseInt(elems[0]), Integer.parseInt(elems[1]));
            pw.write("Case #"+i+": "+bin.exhaust());
            pw.write("\r\n");
            line = reader.readLine();
            i++;
        }
        reader.close();
        pw.close();
    }

        public static void main(String[] args) throws IOException {
        testOutput("F:\\input.txt", "F:\\output.txt");
    }
}
