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.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Scanner;

public class RecycledNumbers {
    private PrintWriter out;
    private Scanner in;

    private void init() {
    }

    private void solve() {
        int A = in.nextInt();
        int B = in.nextInt();

        int r = 0;
        for (int i = A; i <= B; i++) {
            int j = rotate(i);
            while (i != j) {
                if (i < j && j <= B) {
                    r++;
                }
                j = rotate(j);
            }
        }
        out.println(r);
    }

    private int rotate(int number) {
        int pos = 1;
        while (number % 10 == 0) {
            pos *= 10;
            number /= 10;
        }
        int rest = number % 10;
        number /= 10;
        int numberCopy = number;
        while (numberCopy > 0) {
            pos *= 10;
            numberCopy /= 10;
        }
        return rest * pos + number;
    }

    private void runTests() {
        init();

        int T = Integer.parseInt(in.nextLine());
        for (int i = 0; i < T; i++) {
            out.print("Case #" + (i + 1) + ": ");
            solve();
        }
    }

    private void run() {
        try {
            runTests();
        } finally {
            close();
        }
    }

    private void close() {
        out.close();
        in.close();
    }

    public RecycledNumbers() throws FileNotFoundException {
        this.in = new Scanner(new File("C-large.in"));
        this.out = new PrintWriter(new File("C-large.out"));
    }

    public static void main(String[] args) throws FileNotFoundException {
        new RecycledNumbers().run();
    }
}
