import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

package qualification;

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

public class C {

	static int pow(int b)
	{
		return (int)Math.pow(10,b);
	}
	public static void main(String args[]) throws FileNotFoundException
	{
		Scanner sin=new Scanner(new File("C:\\Users\\DELL\\Desktop\\CodeJam\\C-small-attempt0.in"));
		PrintStream ps=new PrintStream(new File("C:\\Users\\DELL\\Desktop\\CodeJam\\COut.out"));
		
		int cases=sin.nextInt();
		for(int test=1;test<=cases;test++)
		{
			int start=sin.nextInt();
			int stop=sin.nextInt();
			int count=0;
			int max=0;
			
			while(start/pow(max) >0)
				max++;
			max--;
			String s="";
			for(int i=start;i<=stop;i++)
			{
				int temp=max;
				while(temp>0)
				{
					int t=((i%pow(temp))*(pow(max-temp+1)))+i/pow(temp);
					temp--;
					if(t>i && t<=stop)
					{
						if(s.indexOf(i+":"+t+"|")!=-1)
							continue;
						s+=i+":"+t+"|";
						count++;
					}
				}
			}
			
			ps.println("Case #"+test+": "+count);
		}
	}
}
