import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
package recyclednumbers;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;

public class Main {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		Input ip = new Input("C-small-attempt4.in");
		ip.setInputData();
		int number = 0;
		StringBuffer sb = new StringBuffer();
		for (TestCase tc : ip.getCases()){
			number++;
			sb.append("Case #" +number+": " +executeTestCase(tc).getM().size()+"\n");
		}
		Writer output = null;
		  
		  File file = new File("out.txt");
		  output = new BufferedWriter(new FileWriter(file));
		  output.write(sb.toString());
		  output.close();
	}

	private static ListRecycledNumbers executeTestCase(TestCase tc) {
		List<Integer> n = new ArrayList<Integer>();
		List<Integer> m = new ArrayList<Integer>();
		ListRecycledNumbers recycledNumbers = new ListRecycledNumbers();
		boolean recycledPairAlreadyPresent = false;
		for (int i = tc.A; i <= tc.B; i++) {
			for (int j = 1; j < Integer.toString(tc.B).length(); j++) {
				int newInt = Helper.rotateDigits(i, j, true);
				if (i != newInt) {
					if (newInt < tc.B && newInt > tc.A) {
						recycledPairAlreadyPresent = false;
						for(int k = 0; k < recycledNumbers.getM().size(); k++){
							if((recycledNumbers.getN().get(k) == newInt && recycledNumbers.getM().get(k) == i) || (recycledNumbers.getM().get(k) == newInt && recycledNumbers.getN().get(k) == i)){
								recycledPairAlreadyPresent = true;
								break;
							}
						}
						if(!recycledPairAlreadyPresent)
						recycledNumbers.add(newInt, i);
					}
				}
			}
		}
		return recycledNumbers;
		//removeRepetitiveRecycledNumbers(recycledNumbers);
	}
	/*public static ListRecycledNumbers finalList = new ListRecycledNumbers();
	private static void removeRepetitiveRecycledNumbers(
			ListRecycledNumbers recycledNumbers) {
		
		for (int i = 0; i < recycledNumbers.getM().size(); i++) {
			for (int j = 0; j < recycledNumbers.getM().size(); j++) {
				if ((recycledNumbers.getM().get(i) != recycledNumbers.getM()
						.get(j)
						&& recycledNumbers.getN().get(i) != recycledNumbers
								.getN().get(j) && i != j)
						|| (recycledNumbers.getM().get(i) != recycledNumbers
								.getN().get(j)
								&& recycledNumbers.getN().get(i) != recycledNumbers
										.getM().get(j) && i != j)) {
					finalList.add(recycledNumbers.getN().get(i), recycledNumbers.getM().get(i));
				}
			}
		}
	}
*/
}
