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 c;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.HashSet;

public class RecycledNumbers {

	public static int getDistinctRecycleCount(int min, int max) {
		HashSet<String> distinctCollection = new HashSet<String>();
		for(int i = min; i <= max; i++) {
			distinctCollection.addAll(getThePossiblePair(i, max));
		}
		return distinctCollection.size();
	}
	
	private static HashSet<String> getThePossiblePair(int theNum, int max) {
		HashSet<String> ret = new HashSet<String>();
		String theNumStr = Integer.toString(theNum);
		for(int n = 1; n < theNumStr.length(); n++) {
			//roll the number 1 time to the left
			char firstChar = theNumStr.charAt(0);
			theNumStr = theNumStr.substring(1) + firstChar;
			int theRolledNum = Integer.parseInt(theNumStr);

			//check if the rolled number is possible
			if((theNum < theRolledNum) && (theRolledNum <= max))
				ret.add(Integer.toString(Math.min(theNum, theRolledNum)) +
						"-" +
						Integer.toString(Math.max(theNum, theRolledNum)));
		}
		return ret;
	}


	public static void main(String[] args) throws Exception {

		//initial reader by args[0]
		BufferedReader r = new BufferedReader(new FileReader(args[0]));
		int cases = Integer.parseInt(r.readLine());

		//initial writer by args[1]
		PrintWriter w = new PrintWriter(args[1]);

		//do
		for(int i = 1; i <= cases; i++) {
			String[] ab = r.readLine().split(" ");
			w.println("Case #" + i + ": " + getDistinctRecycleCount(Integer.parseInt(ab[0]), Integer.parseInt(ab[1])));
		}

		//close file handles
		w.close();
		r.close();
	}

}