package main

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

var sc = bufio.NewScanner(os.Stdin)
var wr = bufio.NewWriter(os.Stdout)

func out(x ...interface{}) {
	fmt.Fprintln(wr, x...)
}

func getI() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func getF() float64 {
	sc.Scan()
	i, e := strconv.ParseFloat(sc.Text(), 64)
	if e != nil {
		panic(e)
	}
	return i
}

func getInts(N int) []int {
	ret := make([]int, N)
	for i := 0; i < N; i++ {
		ret[i] = getI()
	}
	return ret
}

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

// min, max, asub, absなど基本関数
func max(a, b int) int {
	if a > b {
		return a
	}
	return b
}

func min(a, b int) int {
	if a < b {
		return a
	}
	return b
}

func asub(a, b int) int {
	if a > b {
		return a - b
	}
	return b - a
}

func abs(a int) int {
	if a >= 0 {
		return a
	}
	return -a
}

func lowerBound(a []int, x int) int {
	idx := sort.Search(len(a), func(i int) bool {
		return a[i] >= x
	})
	return idx
}

func upperBound(a []int, x int) int {
	idx := sort.Search(len(a), func(i int) bool {
		return a[i] > x
	})
	return idx
}

func main() {
	defer wr.Flush()
	sc.Split(bufio.ScanWords)
	sc.Buffer([]byte{}, 1000000)
	// this template is new version.
	// use getI(), getS(), getInts(), getF()
	T, A, B := getI(), getI(), getI()
	n := max(A, B)
	if T < n {
		out("NO")
		return
	}

	rest := T - n
	if rest%2 == 0 {
		out("YES")
		x := 0
		y := 0
		for i := 0; i < n; i++ {
			if x < A && y < A {
				out(">^")
				x++
				y++
			} else if x < A {
				out("^")
				x++
			} else {
				out(">")
				y++
			}
		}
		for i := 0; i < rest/2; i++ {
			out(">")
			out("<")
		}
		return
	}

	if A == 0 || B == 0 {
		out("NO")
		return
	}
	out("YES")
	out(">")
	out("^")
	x := 1
	y := 1
	n--
	for i := 0; i < n; i++ {
		if x < A && y < A {
			out(">^")
			x++
			y++
		} else if x < A {
			out("^")
			x++
		} else {
			out(">")
			y++
		}
	}
	for i := 0; i < rest/2; i++ {
		out(">")
		out("<")
	}
}