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 trupti;


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

public class ok2 
{
    public static void main(String[] args) 
	{
		int cn=0;
        
        try 
		{
            
			FileOutputStream out=new FileOutputStream("out9.out");
            Scanner scanner = new Scanner(new FileReader("C-small-attempt6.in"));
			int n=scanner.nextInt();
		//	scanner.nextLine();
            while (n!=cn) {
				cn++;
				int q=0;
				int a=scanner.nextInt();
				int b=scanner.nextInt();
				int no=0;
				for(int r=a;r<=b;r++)
				{ 
					String str=r+"";
				//	System.out.println("str"+str);
					do{
						char c=str.charAt(0);
						String str1=str.substring(1, str.length()); 
						str=str1+c;
					//	System.out.println(str);
						no=Integer.parseInt(str);
					//	System.out.println("no"+no);
						if((no<r)&(a<=no)&(no<=b))
						{//System.out.println("no:"+no+"  r:  "+r);
							q++;
						}
						
					}while(no!=r);
				}


				out.write(("Case #"+cn+": "+q+"\n").getBytes());
				
				// out.write(("\n").getBytes());
				 System.out.println("Case #"+cn+": "+q);
				 //System.out.println();
            }
        } catch (Exception e) {}
                
	}
}