import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
import java.util.Scanner;
import java.io.File;

public class RecycledNumbers {
	public static void main(String[] args) {
		Scanner input = null;
		boolean[][] counted;

	    try {
	        input = new Scanner(new File(args[0]));
	    } catch (Exception e) {
	        System.out.println("Please pass a correct filename as a program parameter");
	    	System.exit(1);
    	}

    	int t, a, b;

    	t = input.nextInt();
    	input.nextLine();

    	int recycledCount = 0;

    	for (int testNumber = 0; testNumber < t; testNumber++) {
	    	a = input.nextInt();
    		b = input.nextInt();
    		input.nextLine();

    		counted = getFalseArray(b-a+1);

    		// For each test case, look at all numbers between A and B as a possibleN
    		for (int possibleN = a; possibleN <= b; possibleN++) {
    			// For each possibleN, consider each recycled form
    			for (int offset = 1; offset < String.valueOf(possibleN).length(); offset++) {
    				int cycledN = Integer.parseInt(cycleRight("" + possibleN, offset));
    				// For each recycled form, consider whether it is within the appropriate range
    				if (cycledN >= a && cycledN <= b) {
    					// These numbers are cycled forms of eachother. Are they suitable?
    					if (possibleN != cycledN && counted[min(possibleN, cycledN)-a][max(possibleN, cycledN)-a] == false) {
    						counted[min(possibleN, cycledN)-a][max(possibleN, cycledN)-a] = true;
    						recycledCount++;
						}
    				}
				}
    		}

    		System.out.println("Case #" + (testNumber+1) + ": " + recycledCount);
    		recycledCount = 0;
    	}
	}

	public static String cycleRight(String number, int positions) {
		int intLen = number.length();

		while (positions > 0) {
			// Cycle one right
			number = number.charAt(intLen-1)+number.substring(0, intLen-1);
			positions--;
		}

		return number;
	}

	public static boolean[][] getFalseArray(int size) {
		boolean[][] array = new boolean[size][size];

		for (int i = 0; i < size; i++) {
			for (int j = 0; j < size; j++) {
				array[i][j] = false;
			}
		}

		return array;
	}

	public static int min(int a, int b) {
		return (a < b ? a : b);
	}

	public static int max(int a, int b) {
		return (a < b ? b : a);
	}
}