import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.Scanner;

public class CodeJam2012Ex3 {
	public static void main(String arg[]) throws FileNotFoundException {
		File file = new File("C-large.in");
		String output;
		Scanner scanner = new Scanner(file);
		int numTestCases = scanner.nextInt();

		for (int i = 0; i < numTestCases; i++) {
			StringBuffer buffer = new StringBuffer("Case #" + (i + 1) + ": ");
			int A = scanner.nextInt();
			int B = scanner.nextInt();
			buffer.append(CodeJam2012Ex3.countPairs(A, B));
			if (i != numTestCases - 1) {
				buffer.append("\n");
			}
			output = buffer.toString();

			System.out.print(output);
		}

	}

	public static int countPairs(int A, int B) {
		int pairs = 0;
		HashMap<String, Boolean> map = new HashMap<String, Boolean>();

		for (int i = A; i <= B; i++) {

			String n = i + "";

			int len = n.length();
			for (int j = 1; j < len; j++) {
				String m = n.substring(len - j) + n.substring(0, len - j);
				int nNum = Integer.parseInt(n);
				int mNum = Integer.parseInt(m);
				if (nNum < mNum && n.length() == (mNum + "").length()
				&& mNum <= B && !map.containsKey((n + m))) {
					map.put(n + m, (Boolean) true);
					pairs++;
				}
			}
		}
		return pairs;

	}
}
