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.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;


public class Recycled {

	
	public static void main(String[] args){
		Recycled r = new Recycled();
		try{
			  // Open the file that is the first 
			  // command line parameter
			  FileInputStream fstream = new FileInputStream("C-large.in");
			  // Get the object of DataInputStream
			  DataInputStream in = new DataInputStream(fstream);
			  BufferedReader br = new BufferedReader(new InputStreamReader(in));
			  String strLine;
			  //Read File Line By Line
			  
			  int numOfTests = Integer.parseInt(br.readLine());
			  for(int i=1; i<=numOfTests; i++){
				  String itemString = br.readLine();
				  System.out.print("Case #"+i+": ");
				  long A = Long.parseLong(itemString.split(" ")[0]);
				  long B = Long.parseLong(itemString.split(" ")[1]);
				  r.countRecycled(A,B);
				  System.out.println();
			  }
			  //Close the input stream
			  in.close();
		}catch (Exception e){//Catch exception if any
			  System.err.println("Error: " + e.getMessage());
		}
	}

	private char[] shuffle(char[] numString){
		//char[] numString = (x+"").toCharArray(); 
		int i=0; 
		char temp=numString[i];
		for(i=0; i<numString.length-1; i++){
			numString[i]=numString[i+1];
		}
		numString[i]=temp;
		return numString;
	}
	private void countRecycled(long a, long b) {
		long count = 0;
//		System.out.println(a+"  "+b);
		for(long i=a; i<b; i++){
			char[] shuffleChar =(i+"").toCharArray();
			long shuffleNum = Long.parseLong(new String(shuffleChar));
			for(int j=0; j<(i+"").length()-1; j++){
				shuffleChar = shuffle(shuffleChar);
				shuffleNum = Long.parseLong(new String(shuffleChar));
				if(shuffleNum > a && shuffleNum > i && shuffleNum <=b ){
//						System.out.print(" "+i);
//						System.out.println(" shuffle: "+shuffleNum);
						count++;
				}
			}
		}
//		System.out.println();
		System.out.print(count);
	}

}
