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.*;
import java.util.*;

public class C {
	
	BufferedReader br;
	PrintWriter out;
	StringTokenizer st;
	boolean eof;
	
	enum InputType {
		SAMPLE, SMALL, LARGE;
	}
	
	static final InputType currentInputType = InputType.LARGE;
	static final int attemptNumber = 0; // for small inputs only
	
	int pow10;
	
	void solve() throws IOException {
		int a = nextInt();
		int b = nextInt();
		
		pow10 = 1;
		int cnt = Integer.toString(a).length();
		for (int i = 0; i < cnt - 1; i++)
			pow10 *= 10;
		
		long ans = 0;
		
		for (int i = a; i <= b; i++) {
			for (int j = (i % 10) * pow10 + (i / 10); j != i; j = (j % 10) * pow10 + j / 10)
				if (a <= j && j <= b && j > i)
					ans++;
		}
		
		out.println(ans);
	}
	
	void inp() throws IOException {
		switch (currentInputType) {
		case SAMPLE:
			br = new BufferedReader(new InputStreamReader(System.in));
			out = new PrintWriter(System.out);
			break;
		case SMALL:
			String fileName = "C-small-attempt" + attemptNumber;
			br = new BufferedReader(new FileReader(fileName + ".in"));
			out = new PrintWriter(fileName + ".out");
			break;
		case LARGE:
			fileName = "C-large";
			br = new BufferedReader(new FileReader(fileName + ".in"));
			out = new PrintWriter(fileName + ".out");
			break;
		}
		int test = nextInt();
		for (int i = 1; i <= test; i++) {
			System.err.println("Running test " + i);
			out.print("Case #" + i + ": ");
			solve();
		}
		out.close();
	}
	
	public static void main(String[] args) throws IOException {
		new C().inp();
	}
	
	String nextToken() {
		while (st == null || !st.hasMoreTokens()) {
			try {
				st = new StringTokenizer(br.readLine());
			} catch (Exception e) {
				eof = true;
				return null;
			}
		}
		return st.nextToken();
	}
	
	String nextString() {
		try {
			return br.readLine();
		} catch (Exception e) {
			eof = true;
			return null;
		}
	}
	
	int nextInt() throws IOException {
		return Integer.parseInt(nextToken());
	}
	
	long nextLong() throws IOException {
		return Long.parseLong(nextToken());
	}
	
	double nextDouble() throws IOException {
		return Double.parseDouble(nextToken());
	}
}
