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 qualification;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Recycled {
	
	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		
		int numCases = s.nextInt();
		
		for (int i = 1; i <= numCases; i++) {
			int a = s.nextInt();
			int b = s.nextInt();
			
			int numRecycled = countRecycled(a, b);
			
			System.out.printf("Case #%d: %d\n", i, numRecycled);
		}
	}
	
	private static int countRecycled(int a, int b) {
		int result = 0;
		
		StringBuilder sbB = new StringBuilder();
		sbB.append(b);
		
		List<Integer> register = new ArrayList<Integer>();
		
		for (int i = a; i <= b; i++) {
			register.clear();
			
			if (i < 10) continue;
			
			StringBuilder sb = new StringBuilder();
			sb.append(i);
			
			for (int j = sb.length() - 1; j > 0; j--) {
				StringBuilder newCombinedSb = new StringBuilder();
				newCombinedSb.append(sb.substring(j)).append(sb.substring(0,  j));
				
				if (newCombinedSb.charAt(0) == '0') continue;
				
				if (newCombinedSb.charAt(0) > sbB.charAt(0)) continue;

				if (newCombinedSb.charAt(0) < sb.charAt(0)) continue;

				int newCombinedInt = Integer.parseInt(newCombinedSb.toString());
				
				if (newCombinedInt <= b && newCombinedInt > i) {
					if (!register.contains(newCombinedInt)) {
						register.add(newCombinedInt);
					}
				}
			}
			
			result += register.size();
		}
		
		return result;
	}

}
