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 codejam2012.r0;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;

/**
 * @author julian
 */
public class C {

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

	public void run() throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("C.in"));
		BufferedWriter out = new BufferedWriter(new FileWriter("C.out"));
		int t = Integer.parseInt(in.readLine());
		for (int i = 0; i < t; i++) {
			StringTokenizer stok = new StringTokenizer(in.readLine());
			int a = Integer.parseInt(stok.nextToken());
			int b = Integer.parseInt(stok.nextToken());
			out.write("Case #" + (i + 1) + ": " + solve(a, b) + "\n");
		}
		in.close();
		out.flush();
		out.close();
	}

	public int solve(int a, int b) {
		int ret = 0;
		for (int n = a; n <= b; n++) {
			String str = "" + n;
			Set<Integer> perm = new HashSet<Integer>();
			int ndig = str.length();
			for (int k = 0; k < ndig - 1; k++) {
				str = str.substring(1) + str.charAt(0);
				int m = Integer.parseInt(str);
				if (n < m && m <= b) {
					perm.add(m);
				}
			}
			ret += perm.size();
		}
		return ret;
	}

}
