from bisect import *
from math import *
from collections import *
from heapq import *
from random import *
import numpy as np
import sys

sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def MF(): return map(float, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LF(): return list(map(float, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]

def main():
    n,y,x=MI()
    if max(x,y)>n or (n,y,x)==(1,0,0):
        print("NO")
        exit()
    ans=[""]*n
    r=x+(n-x)//2
    l=(n-x)//2
    u=y+(n-y)//2
    d=(n-y)//2
    for i in range(r):
        ans[i]=">"
    for i in range(r,r+l):
        ans[i]="<"
    for i in range(n-1,n-1-u,-1):
        ans[i]+="^"
    for i in range(n-1-u,n-1-u-d,-1):
        ans[i]+="v"
    print("YES")
    for s in ans:
        print(s)

main()