import java.util.HashSet;
import java.util.Scanner;

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam2012;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;

/**
 *
 * @author Luis Sergio Curay
 */
public class c {

    public c() {
        Scanner in= new Scanner(System.in);
        int t= in.nextInt();
        for (int i = 0; i < t; i++) {
            int a= in.nextInt();
            int b= in.nextInt();
            HashSet<Integer> nums= new HashSet<Integer>();
            int res= 0;
            for (int j = a; j <= b; j++) {
                HashSet<Integer> comb= combinaroty(j);
                for (Integer num : comb) {
                    if(num >= a && num <= b && num != j) {
                        if(!nums.contains(num)) {
                            nums.add(j);
                            res++;
                        }
                    }
                }
            }
            System.out.println("Case #" + (i + 1) + ": " + res);
        }
    }
    
    public int reverse(int n) {
        String num= String.valueOf(n);
        for (int i = 0; i < num.length() - 1; i++) {
            num= num.substring(num.length() - 1) + num.substring(0, num.length() - 1);
        }
        return Integer.parseInt(num);
    }
    
    private HashSet<Integer> combinaroty(int n) {
        HashSet<Integer> res= new HashSet<Integer>();
        String num= String.valueOf(n);
        for (int i = 0; i < num.length() - 1; i++) {
            num= num.substring(num.length() - 1) + num.substring(0, num.length() - 1);
            res.add(Integer.parseInt(num));
        }
        return res;
    }
}