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;
	}

}

import java.util.*;

public class RecycledNumbers {

	public static void main(String[] args) {
		
		System.out.println("Enter case input:");
		
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		sc.nextLine();
		
		int[][] numbers = new int[T][2];
		for (int t = 0; t < T; t++) {
			numbers[t][0] = sc.nextInt();
			numbers[t][1] = sc.nextInt();
			sc.nextLine();
		}
		
		for (int t = 1; t <= T; t++) {
			int a = numbers[t - 1][0];
			int b = numbers[t - 1][1];
			int numRecycledPairs = 0;
			
			for (int n = a; n < b; n++) {
				String N = n + "";
				int[] matches = new int[N.length()];
				boolean duplicate = false;
				
				for (int digitFromBack = 1; digitFromBack <= N.length() - 1; digitFromBack++) {
					int newInt = Integer.parseInt(N.substring(N.length() - digitFromBack) + N.substring(0, N.length() - digitFromBack));
					if (newInt > n && newInt <= b) {
						for (int match : matches) {
							if (newInt == match)
								duplicate = true;
						}
						//System.out.print(n + ":" + newInt + " ");
						if (!duplicate) {
							matches[digitFromBack] = newInt;
							numRecycledPairs++;
						}
					}
				}
			}
			
			System.out.println("Case #" + t + ": " + numRecycledPairs);
		}
		
		

	}

}
