import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
package test.com;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Stack;

public class Qual2012C {


	public static void main(String[] args) throws Exception {
		FileInputStream fos = new FileInputStream("c:/sanker/workspace/input2/C-large.in");
		BufferedReader buf = new BufferedReader(new InputStreamReader(fos));
		String str = "";
		int N0;

		str = buf.readLine();
		N0 = Integer.parseInt(str);
		for(int cnti=0; cnti<N0 ; cnti++) {
			str = buf.readLine();
			if(str == null) System.exit(0);
			String[] chars = str.split(" ");
			int A, B;
			A = Integer.parseInt(chars[0]);
			B = Integer.parseInt(chars[1]);
			int num=0, count=0;
			for(int j=A;j<B;j++) {
				num = j;
				String num1 = String.valueOf(num);
				String orgnum1 = String.valueOf(num);
				int numlen = num1.length();
				for(int k=1;k<=numlen;k++) {
					num1 = orgnum1.substring(orgnum1.length()-k)+""+orgnum1.substring(0, orgnum1.length()-k);
					if(num1.equals(String.valueOf(num)))
						break;
					if(num < Integer.parseInt(num1) && Integer.parseInt(num1) <= B ) {
						count++;
					}
				}
			}
			
			System.out.println("Case #"+(cnti+1)+": "+count);
			
		}
		
	}
	
	

}
