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.*;
import java.util.StringTokenizer;

public class RecycledNumbers {
	public static void main(String[] args) {
		try {
			BufferedReader ifStream = new BufferedReader(new FileReader("C-large.in"));
			PrintWriter ofStream = new PrintWriter(new FileWriter("C.out"));
			int numCase;
			String inputCase;

			numCase = Integer.parseInt(ifStream.readLine());
			for (int i=1; i<=numCase; i++) {
				ofStream.println("Case #"+i+": "+recycledNumbers(ifStream.readLine()));
			}

			ifStream.close();
			ofStream.close();
		}
		catch (IOException e) {
			System.out.println("IOException.");
		}
	}

	private static int  recycledNumbers(String input) {
		StringTokenizer st = new StringTokenizer(input, " ", false);
		int A = Integer.parseInt(st.nextToken());
		int B = Integer.parseInt(st.nextToken());
		int numDigits = String.valueOf(A).length();
		int[] mArr = new int[numDigits];
		int count, m;
		int result = 0;

		for (int n=A; n<B; n++) {
			count = 0;
			for (int i=1; i<numDigits; i++) {
				m = shiftInt(n, i);
				if (m > n && m <= B) {
					mArr[count++] = m;
				}
			}
			result += count;
			for (int i=0; i<count; i++) {	// redundancy check
				for (int j=i+1; j<count; j++) {
					if (mArr[j] == mArr[i]) {
						result--;
						mArr[j] = 0;
					}
				}
			}
		}

		return result;
	}

	private static int shiftInt(int num, int k) {
		String before = String.valueOf(num);
		String after = before.substring(k, before.length()) + before.substring(0, k);

		return Integer.parseInt(after);
	}
}
