import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int counter = 0;
        String str = sc.nextLine();
        String[] string = str.split(" ");
        int[] arr = new int[string.length];
        for (int i = 0; i < string.length; i++) {
            arr[i] = Integer.valueOf(string[i]);
        }
        for (int i = 0; i< string.length-1;i++) {
            if(arr[i]<=arr[i+1]){
                counter+=1;
            }
            else{
                break;
            }
        }
        System.out.println(counter==string.length-1);
    }
}