package qual;

import java.util.Scanner;

public class RecycledNumbers {

	public static void main(String[] args) {
		new RecycledNumbers().run();

	}

	private void run() {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int t = 0; t < T; t++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int result = solve(A, B);
			System.out.printf("Case #%d: %d\n", t + 1, result);
		}
	}

	public int solve(int A, int B) {
		int result = 0;
		for (int i = A; i <= B; i++) {
			int dig = (int) Math.log10(A/*same as B*/) + 1;
			int aa = i;
			for (int d = 0; d < dig - 1; d++) {
				aa = (aa % 10) * (int)Math.pow(10, dig - 1) + (aa / 10);
				if (i == aa) {
					break;
				}
				if (i < aa && aa <= B) {
//					System.out.printf("(%d, %d) ", i, aa);
					result++;
				}
			}
		}
		return result;
	}

}

package Qualifier;

import java.io.*;
import java.util.*;

public class C_Small {
	private static Scanner in;
	private static PrintWriter out;
    private static String testCase = "C-small";

    public static void main(String[] args) throws Exception {
        Locale.setDefault(Locale.ENGLISH);
        out = new PrintWriter(new FileOutputStream(testCase + ".out"));
        in = new Scanner(new BufferedReader(new InputStreamReader(new FileInputStream(testCase + ".in"))));
        
        int tests = in.nextInt();
        in.nextLine();
    	
        for (int t = 1; t <= tests; ++t) {
            out.print("Case #" + t + ": ");
            new C_Small().solve();
        }
        in.close();
        out.close();
    }

    void solve() throws Exception {
    	int A = in.nextInt();
    	int B = in.nextInt();
    	long result = 0; 
    	if(B < A || String.valueOf(A).trim().length() != String.valueOf(B).trim().length()){
    		return;
    	}
    	
    	for(int n=A; n<=B; n++){
    		String nString = String.valueOf(n);
    		int length = nString.length();
    		for(int j = 1; j < length; j++){
    			String c = nString.substring(j, length) + nString.substring(0 , j);
    			int mCase = Integer.parseInt(c);
    			if(mCase >= A && mCase <= B && mCase > n){
    				result++;
    			}
    		}
    	}
  
    	out.println(result);
    }
}
