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.bd.codejam.y2012;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

class C {
	public void solve() throws IOException {
		Scanner in = new Scanner(new File(getClass().getSimpleName() + ".in.txt"));
		PrintWriter out = new PrintWriter(new File(getClass().getSimpleName() + ".out.txt"));

		int T = Integer.parseInt(in.nextLine());
		for (int t = 0; t < T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();
			int result = solve(A, B);
			
			out.println("Case #" + (t + 1) + ": " + result);
			System.out.println("Case #" + (t + 1) + ": " + result);
		}

		in.close();
		out.close();
	}
	
	private int solve(int A, int B) {
		line = 1;
		int r = 0;
		for (int n = A; n < B; n++) {
			r += recycledPairs(n, B);
		}
		
		return r;
	}
	
	int line = 1;
	private int recycledPairs(int n, int max) {
		int r = 0;
		for (int pair : recycledPairs(n)) {
			if (n < pair && pair <= max) {
				r++;
				//System.out.println((line++) + ": " + n + " " + pair);
			}
		}
		return r;
		
		
	}
	
	private List<Integer> recycledPairs(int n) {
		String s = Integer.toString(n);
		
		List<Integer> r = new ArrayList<Integer>(s.length()-1);
		for (int i = 1; i < s.length(); i++) {
			String shift = shift(s, i);
			if (shift.charAt(0) != '0') {
				int shifti = Integer.parseInt(shift);
				if (!r.contains(shifti)) {
					r.add(shifti);
				}
			}
		}
		return r;
	}
	
	private String shift(String s, int n) {
		char[] c = new char[s.length()];
		for (int i = 0; i < s.length(); i++) {
			c[i] = s.charAt(((i+(s.length()-n))%s.length()));
		}
		
		return new String(c);
	}
	
	

	public static void main(String[] args) throws IOException {
		new C().solve();
	}
}