package main

import (
	"fmt"
	"regexp"
	"strconv"
)

func readVersion() (z [3]int) {
	var s string
	fmt.Scan(&s)
	re := regexp.MustCompile("\\d")
	for i, m := range re.FindAllString(s, 3) {
		x, _ := strconv.Atoi(m)
		z[i] = x
	}
	return
}

func main() {
	v0, v1 := readVersion(), readVersion()
	for i := 0; i < 3; i++ {
		if v0[i] < v1[i] {
			fmt.Println("NO")
			return
		}
	}
	fmt.Println("YES")
}