import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.StringTokenizer;


public class RecycledNumbers {
	
	public static ArrayList<Integer> palindroms = new ArrayList<Integer>();

	public static void main(String[] args) throws FileNotFoundException, IOException {
		File inFile = new File("/Users/johannesvietze/Desktop/C-small-attempt0.in");
	    
		
	    //read
	    StringTokenizer tok = new StringTokenizer(getContents(inFile),"\n");
	    tok.nextToken(); //delete first token
	    
	    String result = "";
	    int counter = 1;
	    
	    //compute
	    while(tok.hasMoreTokens()){
	    	String in = tok.nextToken(); //next line
	    	String[] current = in.split(" ");
	    	int a = Integer.parseInt(current[0]);
	    	int b = Integer.parseInt(current[1]);
	    	double res = 0;
	    	
	    	palindroms.clear();
	    	for(int n = a; n <= b; n++){
	    		if(n >= 10){
	    			res += getNumberOfRecycledNumbers(a, b, n);
	    		}
	    	}
	    	
	    	DecimalFormat df = new DecimalFormat("#");
	    	result += "Case #" + counter++ + ": ";
	    	result += df.format(res);
	    	result += "\n";
	    }
	    
	    //System.out.println(result);
	    
		//write
	    File outFile = new File("/Users/johannesvietze/Desktop/C-small-attempt0.out");
	    setContents(outFile, result);
		
	}
	
	public static double getNumberOfRecycledNumbers(int min, int max, int in){
		double result = 0;
		
		String currentS = Integer.toString(in);
		int length = currentS.length();
		
		for (int i = 0; i < length; i++) {
			
			currentS = currentS.charAt(length-1) + currentS.substring(0, length-1);
			
			if(Integer.parseInt(currentS) <= max && Integer.parseInt(currentS) > min && in < Integer.parseInt(currentS)){
				if(isPalindrom(String.valueOf(in)  + currentS)){
					if(!palindroms.contains(Integer.parseInt(String.valueOf(in)  + currentS))){
						palindroms.add(Integer.parseInt(String.valueOf(in)  + currentS));
						result++;
					}
				}else{
					result++;
				}
			}
		}
		
		return result;
	}
	
	public static boolean isPalindrom(String s){
		return s.equals(new StringBuffer(s).reverse().toString());
	}
	
	public static String getContents(File aFile) {
	    StringBuilder contents = new StringBuilder();
	    try {
	      BufferedReader input =  new BufferedReader(new FileReader(aFile));
	      try {
	        String line = null;
	        while (( line = input.readLine()) != null){
	          contents.append(line);
	          contents.append(System.getProperty("line.separator"));
	        }
	      }
	      finally {
	        input.close();
	      }
	    }
	    catch (IOException ex){
	      ex.printStackTrace();
	    }
	    
	    return contents.toString();
	  }

	public static void setContents(File aFile, String aContents) throws FileNotFoundException, IOException {
	    Writer output = new BufferedWriter(new FileWriter(aFile));
	    try {
	      output.write( aContents );
	    }
	    finally {
	      output.close();
	    }
	 }
}
