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;
	}

}

package recycledNumbers;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;

public class Flow {

	public static InputData Readin(String filename){
		try {
			FileReader fr = new FileReader(filename);
			Scanner  sc = new Scanner(fr);  
	        
	        int Test_Number = sc.nextInt();
	        System.out.println("The Number of Tests: "+Test_Number);
	        
	        int[] A = new int[Test_Number];
	        int [] B = new int[Test_Number];
	        for(int i=0;i<Test_Number;i++){
	        	int testA = sc.nextInt();
	        	A[i] = testA;
	        	
	        	int testB = sc.nextInt();
	        	B[i] = testB;        	
	        	
	        	
	        	System.out.print("Test "+(i+1)+" "+testA+" ");
	        	System.out.println(testB+" ");
	        }
	        
	        sc.close();
	        
	        InputData inputdata = new InputData(Test_Number, A, B);
	        return inputdata;
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;  
		}

	}

	public static void Writeout(OutputData outputdata, String filename) {
		// TODO Auto-generated method stub
		try {
			PrintWriter pw = new PrintWriter(new FileWriter(filename));
			
			int Test_Number = outputdata.getSteps().length;
			for(int i=0;i<Test_Number;i++){
				pw.println("Case #"+(i+1)+": "+outputdata.getSteps()[i]);
			}
			
			pw.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
}
