import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
package c;

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

public class C {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int t = sc.nextInt();
		sc.nextLine();
		
		int nbr = 1;
		while (t-- > 0) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			int score = 0;
			
			Set<Integer> set = new HashSet<Integer>();
			
			while (a < b) {
				if (!set.contains(a)){
					String s = a+"";
					Set<Integer> temp = new HashSet<Integer>();
					for (int i = 0; i < s.length(); i++) {
						if (s.charAt(0) != '0'){
							int asdf = Integer.parseInt(s);
							if (a <= asdf && asdf <= b){
								temp.add(asdf);
							}
						}
						s = s.substring(1, s.length()) + s.charAt(0);
					}
					set.addAll(temp);
					int n = temp.size();
					while (n > 1){
						score += --n;
					}
				}
				a++;
			}

			System.out.printf("Case #%d: %d\n", nbr++, score);
		}
	}
}
