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 codejam;

import java.io.*;
import java.math.BigInteger;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class RecycledNumbers {


    public static final String LINE_SEPARATOR = System.getProperty("line.separator");

    public static int recycleNum(int a, int b) {
        Map<Integer, Integer> map = new HashMap<Integer, Integer>();
        int n = String.valueOf(a).length();
        int c = 0;
        for (int i = a; i <= b; i++) {
            for (int j = 1; j < n ; j++) {
                int rNum = rotateRight(i, j);
                if (i < rNum && rNum <= b) {
                    if (!map.containsKey(rNum) || map.get(rNum) != i) {
                        map.put(rNum, i);
                        c++;
                    }
                }
            }
        }
        return c;
    }

    private static int rotateRight(int i, int j) {
        int length = String.valueOf(i).length();
        int sP = (int) Math.pow(10, j);
        int bP = (int) Math.pow(10, length - j);
        int rem = i % sP;
        return ((i - rem) / sP) + (rem * bP);
    }

    public static void main(String[] args) throws IOException {
        Scanner scanner = new Scanner(new File("D:\\codejam\\C-large.in"));
        Writer writer = new OutputStreamWriter(new FileOutputStream("D:\\codejam\\C-large.out"));
        Integer n = Integer.valueOf(scanner.nextLine());
        for (int i = 1; i <= n; i++) {
            System.out.println();
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            writer.write("Case #" + i + ": " + recycleNum(a, b));
            writer.write(LINE_SEPARATOR);
        }
        scanner.close();
        writer.close();
    }

}
