import java.util.*;

public class Main{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  }
} Main public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  } main {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int B = sc.nextInt(); B sc.nextInt() sc.nextInt sc int count =0; count 0 for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    } int i=A; int i=A; i A i<=B i B i++ i++ i {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    } {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    } if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++; i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10 i % 100 i 100 i / 10000 + (i / 1000 - i / 10000 * 10) * 10 i / 10000 i 10000 (i / 1000 - i / 10000 * 10) * 10 (i / 1000 - i / 10000 * 10) i / 1000 i 1000 i / 10000 * 10 i / 10000 i 10000 10 10 count++ count System.out.println(count) System.out.println System.out System System.out count String[] args args public class Main{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  }
} public class Main{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  }
} Main
import java.util.*;

public class Main{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int count =0;
    for (int i=A; i<=B; i++) {
      if (i % 100 == i / 10000 + (i / 1000 - i / 10000 * 10) * 10) count++;
    }
    System.out.println(count);
  }
}