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 bsevero.codejam.qualification;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {
	
	private static Set<String> FOUND_PAIRS = new HashSet<String>();

	public static int recycle(String minStr, String maxStr) {
		FOUND_PAIRS = new HashSet<String>();
		int min = Integer.valueOf(minStr);
		int max = Integer.valueOf(maxStr);
		
		int total = 0;
		for(int i = min; i <= max; i++) {
			total += calculate(i, min, max);
		}
		
		return total;
	}
	
	private static int calculate(int value, int min, int max) {
		String valueStr = String.valueOf(value);
		
		if(valueStr.length() < 2) {
			return 0;
		}
		
		int count = 0;
		for(int numDigits = 1; numDigits < valueStr.length(); numDigits++) {
			String newValueStr = valueStr.substring(valueStr.length() - numDigits, valueStr.length()) + valueStr.substring(0, valueStr.length() - numDigits);
			int newValue = Integer.valueOf(newValueStr);
			if(newValue > value && newValue <= max) {
				if(!FOUND_PAIRS.contains(value + " " + newValue)) {
					FOUND_PAIRS.add(value + " " + newValue);
					count++;
				}
				
			}
		}
		
		return count;
	}
	
	
}

