package it.simone.google.code.jam2012;

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

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {
	public static void main(String[] args) {
		try {
			System.setOut(new PrintStream(new FileOutputStream("output.txt")));
			Scanner scanner = new Scanner(new File(args[0]));
			int testsNum = scanner.nextInt();
			
			String solution;
			for (int i=1; i<=testsNum; i++) {
				solution = solve(scanner);
				System.out.println("Case #"+i+": "+solution);
				System.err.println("Case #"+i+": "+solution);
			}
		} catch (Exception e) {e.printStackTrace();}
	}
	
	static class Pair {
		private int n;
		private int m;
		public Pair(int n, int m) {this.n=n; this.m=m;}
		public int hashCode() {return n^m;}
		public boolean equals(Object o) {
			if (!(o instanceof Pair)) return false;
			Pair p = (Pair)o;
			return n==p.n && m==p.m;
		}
		
	}
	
	private static String solve(Scanner scanner) {
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		
		int ret=0;
		int r;

		int digits;
		Set<Pair> pairs = new HashSet<Pair>();
		Pair pair;
		for (int n=A; n<=B; n++) {
			digits = (int)Math.ceil(Math.log10(n));
			if (n>10) {
				for (int d=1; d<digits; d++) {
					r = rotate(n,d);
					if (n<r && r<=B) {
						pair = new Pair(n,r);
						if (!pairs.contains(pair)) {
							pairs.add(new Pair(n,r));
							ret++;
						}
					}
				}
			}
		}
		return ""+ret;
	}
	
	private static int rotate(int n, int pos) {
		return n%(int)Math.pow(10,pos)*(int)Math.pow(10, Math.ceil(Math.log10(n))-pos)+n/(int)Math.pow(10, pos);
	}
}
