package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.util.*;
import java.io.*;

public class C {
	public static int computeDigits(int x){
		if(x<10){
			return 1;
		}else{
			return 1+computeDigits(x/10);
		}
	}
	public static boolean recycled(int x, int y){
		int n = computeDigits(x);
		for(int i = 1;i<n;i++){
			int c = (int)Math.pow(10,i);
			int number = x/c;
			int mod = x%c;
			int newNumber = (mod*(int)Math.pow(10,n-i))+number;
			//System.out.println(newNumber);
			if(newNumber == y) return true;		
		}
		return false;
	}	

	public static void main(String []args){
		Scanner input = new Scanner(System.in);
		int cases = input.nextInt();
		int []result = new int[cases];
		//input.nextLine();
		for(int i = 0; i < cases ;i++){
			int a = input.nextInt();
			int b = input.nextInt();
			if(a<10 || b<10){
				result[i]=0;
			}else{
				for(int j = a; j<b;j++){
					for(int k=a+1;k<=b;k++){
						if(j<k && recycled(j,k)) result[i]++;
					}
				}
			}
		}
		
		try {
			BufferedWriter output = new BufferedWriter(new FileWriter("outfilename.txt"));
			for(int i = 1; i<=cases ;i++){
			System.out.println("Case #"+i+": "+result[i-1]);
			output.write("Case #"+i+": "+result[i-1]+"\n");
			
			}
			output.close();
		} catch (IOException e) {
		}
		
		
	}
	




}