package main

import (
	"fmt"
)

func main() {
	var a [3]int
	var b [3]int
	fmt.Scan(&a[0], &a[1], &a[2], &b[0], &b[1], &b[2])
	for i := 0; i < 3; i++ {
		for j := 0; j < 3; j++ {
			a[i], b[j] = b[j], a[i]
			if (a[0] < a[1] && a[1] > a[2] || a[0] > a[1] && a[1] < a[2]) && a[0] != a[2] {
				if (b[0] < b[1] && b[1] > b[2] || b[0] > b[1] && b[1] < b[2]) && b[0] != b[2] {
					fmt.Println("Yes")
					return
				}
			}
			a[i], b[j] = b[j], a[i]
		}
	}
	fmt.Println("No")
}