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 hk.polyu.cslhu.codejam.solution.impl.qualificationround;

import java.util.List;

import hk.polyu.cslhu.codejam.solution.Solution;

public class RecycledNumbers extends Solution {
	private int min, max;
	
	@Override
	public void setProblem(List<String> problemDesc) {
		// TODO Auto-generated method stub
		String[] splitArray = problemDesc.get(0).split(" ");
		this.min = Integer.valueOf(splitArray[0]);
		this.max = Integer.valueOf(splitArray[1]);
	}

	@Override
	public void solve() {
		// TODO Auto-generated method stub
		int numOfPairs = 0;
		
		for (int i = this.min; i < this.max; i++) {
			for (int j = i + 1; j <= this.max; j++) {
				if (this.isRecycledPair(i, j))
					numOfPairs++;
			}
		}
		
		this.result = String.valueOf(numOfPairs);
	}

	private boolean isRecycledPair(int i, int j) {
		// TODO Auto-generated method stub
		
		if (i >= j)
			return false;
		
		String m = String.valueOf(j);
		String n = String.valueOf(i);
		
		for (int startIndex = 1; startIndex < n.length(); startIndex++) {
			String partToMove = n.substring(startIndex, n.length());
			String newString = partToMove + n.substring(0, startIndex);
			
			if (newString.equals(m))
				return true;
		}
		
		return false;
	}

}
