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 com.clausewitz.codejam.qr2012;

import java.io.IOException;
import java.util.StringTokenizer;

import com.clausewitz.codejam.Solver;

public class Recycled extends Solver {
	private int A = 0;
	private int B = 0;
	@Override
	public void readProblem() throws IOException {
		String line = fileIn.readLine();
		StringTokenizer st = new StringTokenizer(line);
		A = Integer.parseInt(st.nextToken());
		B = Integer.parseInt(st.nextToken());
	}

	@Override
	public void algorithm(int idx) {
		int count = 0;
		
		for(int i=A;i<=B;++i) {
			String original = "" + i;
			String candidate = original;

			while(true) {
				candidate = rotate(candidate);
				if(candidate.equalsIgnoreCase(original)) break;
				int n = Integer.parseInt(candidate);
				if(n>=A && n<=B) ++count;
			}
		}
		
		answer[idx] = "" + count/2;
	}

	private String rotate(String s) {
		if(s.length()==1) return s;
		return s.substring(1, s.length()) + s.charAt(0);
	}
}
