import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.util.Scanner;
import java.util.Vector;


public class ThreadDispatcher{
	
	private static final int CORES = 8;
	private Vector<SolveThread> threads = new Vector<SolveThread>(CORES);
	Scanner scan = new Scanner(System.in);
	private int curCase = 0, T = 0;
	
	public ThreadDispatcher(){
		System.out.println("Paste input for qualification round - problem C");
		T = Integer.parseInt(scan.nextLine());
		for(int i = 1; i <= CORES; i++){
			if(i <= T){
				String line = scan.nextLine();
				curCase++;
				String[] limitsStr = line.split("\\s"); 
				int A = Integer.parseInt(limitsStr[0]);
				int B = Integer.parseInt(limitsStr[1]);
				SolveThread st = new SolveThread(A, B, curCase,this);
				threads.add(st);
				st.run();
			}
		}
	}
	
	public void finish(SolveThread thread){
		System.out.println("Case #" + thread.casenb + ": " + thread.pairs);
		threads.remove(thread);
		if(curCase < T){
			String line = scan.nextLine();
			curCase++;
			String[] limitsStr = line.split("\\s"); 
			int A = Integer.parseInt(limitsStr[0]);
			int B = Integer.parseInt(limitsStr[1]);
			SolveThread st = new SolveThread(A, B, curCase,this);
			threads.add(st);
			st.run();
		}
	}
	
	public static void main(String[] args){
		ThreadDispatcher td = new ThreadDispatcher();
	}
}
