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;
	}
}

import java.util.*;

public class RecycledNumbers {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int cases = scan.nextInt();
		
		for (int i = 0; i < cases; i++) {
			System.out.print("Case #" + (i + 1) + ": ");
			int bot = scan.nextInt();
			int top = scan.nextInt();
			int count = 0;
			
			for (int a = bot; a <= top; a++) {
				for (int b = a+1; b <= top; b++) {
					if (test(a, b)) count++;
				}
			}
			
			System.out.println(count);
		}
	}

	private static boolean test(int a, int b) {
		String numA = String.valueOf(a);
		String numB = String.valueOf(b);
		if (numA.length() != numB.length()) return false;
		
		char refA = numA.charAt(0);
		for (int i = 0; i < numA.length(); i++) {
			char currB = numB.charAt(i);
			if (currB == refA) {
				String compare = numB.substring(i) + numB.substring(0, i);
				if (compare.equals(numA)) return true;
			}
		}
		
		return false;
	}
}
