import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
package de.pat.dev.y2012.qualification.c;

import java.util.*;

/**
 * @author pat.dev@alice.de
 */
public class RecycledNumber {
  private final long lower;
  private final long upper;
  private final long rotationFactor;

  public RecycledNumber(long lower, long upper) {
    this.lower = lower;
    this.upper = upper;
    int numberOfDigits = String.valueOf(lower).length();
    rotationFactor = rotationFactor(numberOfDigits);
  }

  private long rotationFactor(int numberOfDigits) {
    long factor = 1;
    for (int i = 1; i < numberOfDigits; i++) {
      factor *= 10;
    }
    return factor;
  }

  public Set<Pair> pairs() {
    Set<Pair> pairs = new HashSet<Pair>();
    for (long number = lower; number <= upper; number++) {
      Set<Long> rotations = rotations(number);
      for (Long rotation : rotations) {
        pairs.add(new Pair(number, rotation));
      }
    }
    return pairs;
  }

  public Set<Long> rotations(long number) {
    if (rotationFactor == 1) {
      return Collections.emptySet();
    }

    Set<Long> rotations = new HashSet<Long>();
    long rotation = rotate(number);
    while (rotation != number) {
      if (rotation > number && rotation <= upper) {
        rotations.add(rotation);
      }
      rotation = rotate(rotation);
    }
    return rotations;
  }

  private long rotate(long number) {
    long lastDigit = number % 10;
    return number / 10 + lastDigit * this.rotationFactor;
  }

  public static final class Pair {
    public final long m;
    public final long n;

    public Pair(long m, long n) {
      this.m = m;
      this.n = n;
    }

    @Override
    public String toString() {
      return "Pair{" +
        "m=" + m +
        ", n=" + n +
        '}';
    }

    @Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (!(o instanceof Pair)) return false;

      Pair pair = (Pair) o;

      if (m != pair.m) return false;
      if (n != pair.n) return false;

      return true;
    }

    @Override
    public int hashCode() {
      int result = (int) (m ^ (m >>> 32));
      result = 31 * result + (int) (n ^ (n >>> 32));
      return result;
    }
  }
}
