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.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;

/**
 * 
 * @author ysan
 *
 */

public class Problem_C_large {
	

	public static void main(String[] args) throws NumberFormatException,
			IOException {

		BufferedReader in = new BufferedReader(new FileReader("C-large.in"));
		BufferedWriter out = new BufferedWriter(new FileWriter("C-large-output0.txt"));
		
		int cases = Integer.parseInt(in.readLine());
		
		 for (int i = 1; i <= cases; i++) {
			 String text = in.readLine().trim();
			 String[] val = text.split(" ");
			 int count = 0;
			 BigInteger lasta = BigInteger.ZERO;
			 BigInteger lastb = BigInteger.ZERO;
			 
			 BigInteger a = new BigInteger(val[0]);
			 BigInteger b = new BigInteger(val[1]);
			 
			 System.out.println(a +" "+b);
			 BigInteger j = a;
			 while(j.compareTo(b) < 0){ 

				 String g = j.toString();
				
				 for(int k=g.length()-1; k>0; k--){
					 BigInteger r = switchIt(g, k);
					 if(r.compareTo(j) > 0 && r.compareTo(b) <= 0 ){
						 System.out.println(" r "+r+" j "+j);
						 if(lasta == j && lastb == r) continue;
						 lasta = j;
						 lastb = r;
						 count++;

					 }
				 }
				 j = j.add(BigInteger.ONE);
			 }
			 out.write("Case #"+ i +": " + count);
			 out.newLine();
		 }
		 
		
		in.close();
		out.close();
		
		
		

	}
	
	
	static BigInteger switchIt(String v, int p){
		BigInteger r= BigInteger.ZERO;
		
		String a = v.substring(p);
		String b = v.substring(0, p);
		
		if(a.charAt(0) != '0'){
			r = new BigInteger(a+b);
		}
		return r;
		
	}
}
