import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

package qualification;

import java.io.*;
import java.util.Arrays;
import java.util.Scanner;

/**
 * @author Roman Elizarov
 */
public class C {
	public static void main(String[] args) throws IOException {
		new C().go();
	}

	Scanner in;
	PrintWriter out;

	private void go() throws IOException  {
		init();
		in = new Scanner(new File("src\\qualification\\c.in"));
		out = new PrintWriter(new File("src\\qualification\\c.out"));
		int t = in.nextInt();
		for (int tn = 1; tn <= t; tn++) {
			out.println("Case #" + tn + ": " + solveCase());
		}
		in.close();
		out.close();
	}

	int[] p = new int[10];
	int[] u = new int[2000001];
	int uh;

	private void init() {
		p[0] = 1;
		for (int i = 1; i < p.length; i++)
			p[i] = p[i - 1] * 10;
		Arrays.fill(u, -1);
	}

	private int getP(int a) {
		int i = Arrays.binarySearch(p, a);
		return i < 0 ? -i - 2 : i;
	}

	private int solveCase() {
		int a = in.nextInt();
		int b = in.nextInt();
		int ap = getP(a);
		int bp = getP(b);
		int cnt = 0;
		for (int p0 = ap; p0 <= bp; p0++) {
			int a0 = p0 == ap ? a : p[p0];
			int b0 = p0 == bp ? b : p[p0 + 1] - 1;
			cnt += solveCase(a0, b0, p0 + 1);
		}
		return cnt;
	}

	private int solveCase(int a, int b, int d) {
		int cnt = 0;
		for (int n = a; n < b; n++) {
			for (int i = 1; i < d; i++) {
				int m = (n % p[i]) * p[d - i] + n / p[i];
				if (m > n && m <= b && u[m] < 0) {
					cnt++;
					u[m] = uh;
					uh = m;
				}
			}
			while (uh > 0) {
				int next = u[uh];
				u[uh] = -1;
				uh = next;
			}
		}
		return cnt;
	}
}
