import java.util.Scanner;

public class HelloWorld {

	    public static void main(String[] args) throws Exception {

	    	Scanner sc = new Scanner(System.in);
	    	int[] arr1 = new int[3];
	    	int[] arr2 = new int[3];
	        for (int i = 0 ;  i < 3; i ++) {
	        	arr1[i] = sc.nextInt();
	        }
	        for (int i = 0 ;  i < 3; i ++) {
	        	arr2[i] = sc.nextInt();
	        }

	        boolean flag = false;

	        for (int i = 0; i < 3; i ++) {
	        	if (flag == true) {break;}
	        	for (int j = 0; j < 3; j ++) {
	        		int temp = 0;
	        		temp = arr1[i];
	        		arr1[i] = arr2[j];
	        		arr2[j] = temp;
	        		if (is_matsu(arr1) && is_matsu(arr2)) {
	        			flag = true;
	        			break;
	        		}
	        		temp = arr1[i];
	        		arr1[i] = arr2[j];
	        		arr2[j] = temp;
	        	}
	        }


	        System.out.println(flag ?  "YES" : "NO");

	     }




	    static boolean is_matsu(int[] arr) {
	    	return (arr[0] < arr[1] && arr[2] < arr[1] && arr[0] != arr[2]) ||
	    			    (arr[0] > arr[1] && arr[2] > arr[1] && arr[0] != arr[2]);
	    }



	}