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.google.codejam;

import java.util.HashSet;
import java.util.Set;

import com.google.codejam.util.CodeJamInputFile;
import com.google.codejam.util.CodeJamOutputFile;

public class Recycle {

	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Integer count;
		CodeJamInputFile f = new CodeJamInputFile("in/C-small-attempt0.in");
		CodeJamOutputFile fo = new CodeJamOutputFile("out/C-small.out");

		for(int c = 0; c < f.getCases(); c++){
			count = 0;
			Set<String> tested = new HashSet<String>();
			String[] range = f.getLine().split(" ");
			Integer a = Integer.valueOf(range[0]);
			Integer b = Integer.valueOf(range[1]);
			
			for(Integer i = a; i < (b + 1); i++){
				String str = i.toString();
				tested.add(str.concat(str));
				for(int j = 1; j<str.length(); j++){
					String newstr = str.substring(j).concat(str.substring(0, j));
					if(tested.contains(str.concat(newstr)) || tested.contains(newstr.concat(str))){
						continue;
					}
					tested.add(str.concat(newstr));
					Integer testval = Integer.valueOf(newstr);
					if(testval >= a && testval <= b){
						//System.out.println(str + " - " + newstr);
						count++;
					}
				}
			}
			
			fo.writeCase(c, count.toString());
		}
		f.close();
		fo.close();
	}

}
