package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)
var rdr = bufio.NewReaderSize(os.Stdin, 1000000)

func main() {
	sc.Split(bufio.ScanWords)
	t, a, b := nextInt(), nextInt(), nextInt()

	c := a
	if b > a {
		c = b
	}

	if c > t {
		fmt.Println("NO")
		return
	}

	fmt.Println("YES")
	around := t - c

	for i := 0; i < around/2; i++ {
		fmt.Println("v")
		fmt.Println("^")
	}

	m := a
	if b < a {
		m = b
	}
	if around%2 == 1 && m != 0 {
		m--
		fmt.Println(">")
		fmt.Println("^")
	}

	for i := 0; i < m; i++ {
		fmt.Println(">^")
	}

	if around%2 == 1 && m != -1 {
		m++
	}

	if m == 0 && around%2 == 1 {
		if a > 0 {
			fmt.Println("<")
			fmt.Println(">^")
			a++
		} else {
			fmt.Println("v")
			fmt.Println(">^")
			b++
		}
	}

	for i := 0; i < m-a; i++ {
		fmt.Println("^")
	}
	for i := 0; i < m-b; i++ {
		fmt.Println(">")
	}
	return
}

func nextLine() string {
	sc.Scan()
	return sc.Text()
}

func nextInt() int {
	i, _ := strconv.Atoi(nextLine())
	return i
}