import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
ï»¿import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

/*
 * Google Code Jam 2012
 * Qualification 2012
 * raguenets@gmail.com
 * Usage : java RecycledNumbers inputFileName outputFileName
 */
public class RecycledNumbers {

  public static void main(String[] args) {
    int T = 0;
    int A = 0;
    int B = 0;

    if (args.length == 2) {
      String inputFilename = args[0];
      File finput = new File(inputFilename);
      String outputFilename = args[1];
      File foutput = new File(outputFilename);
      Scanner scanner = null;
      BufferedWriter bw = null;
      try {
        bw = new BufferedWriter(new FileWriter(foutput));
      }
      catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
      }
      if (finput.exists()) {
        try {
          scanner = new Scanner(finput);
          // Reads first line : number of Tests
          if (scanner.hasNextInt()) {
            T = scanner.nextInt();
            scanner.nextLine();
          }
          for (int i = 0; i < T; i++) {
            // Read number of flies
            A = scanner.nextInt();
            B = scanner.nextInt();
            // Read fly positions
            bw.write("Case #" + (i + 1) + ": " + numberOfRecycled(A,B) + "\n");
          }
        }
        catch (FileNotFoundException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
        catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
        finally {
          try {
            bw.close();
            if (scanner != null) {
              scanner.close();
            }
          }
          catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
          }
        }
      }
    }
  }
  
  public static int numberOfRecycled(int A,int B) {
    if (B < 10) {
      return 0;
    } else if (B < 100) {
      int count = 0;
      for (int i=A; i < B;i++) {
        int tens = i/10;
        int units = i%10;
        if (units*10+tens <= B && units*10+tens > i) {
          count++;
        }
      }
      return count;
    } else if (B < 1000) {
      int count = 0;
      for (int i=A; i < B;i++) {
        int cents = i/100;
        int tens = (i-100*cents)/10;
        int units = i%10;
        // ABC
        // BCA
        // CAB
        if (units*100+cents*10+tens <= B && units*100+cents*10+tens >i) {
          count++;
        }
        if (tens*100+units*10+cents <= B && tens*100+units*10+cents > i) {
            count++;
        }        
      }
      return count;
    }
    return 0;
  }
}
