import sys

def input(): return sys.stdin.readline().strip()
def list2d(a, b, c): return [[c for j in range(b)] for i in range(a)]
def list3d(a, b, c, d): return [[[d for k in range(c)] for j in range(b)] for i in range(a)]
def list4d(a, b, c, d, e): return [[[[e for l in range(d)] for k in range(c)] for j in range(b)] for i in range(a)]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(N=None): return list(MAP()) if N is None else [INT() for i in range(N)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10**9)
INF = 10**18
MOD = 10**9 + 7
EPS = 10**-10

t, gh, gw = MAP()

def check(h, w):
    return max(abs(h-gh), abs(w-gw))

ch = cw = 0
dist = check(ch, cw)
if dist > t:
    NO()
    exit()

ans = []
while check(ch, cw) > 1:
    if abs(ch-gh) and abs(cw-gw):
        ans.append('^>')
        ch += 1
        cw += 1
        t -= 1
    elif abs(ch-gh):
        ans.append('^')
        ch += 1
        t -= 1
    else:
        ans.append('>')
        cw += 1
        t -= 1

if t % 2 == 1: 
    if abs(ch-gh) and abs(cw-gw):
        ans.append('^>')
        ch += 1
        cw += 1
        t -= 1
    elif abs(ch-gh):
        ans.append('^')
        ch += 1
        t -= 1
    else:
        ans.append('>')
        cw += 1
        t -= 1
else:
    if abs(ch-gh) and abs(cw-gw):
        ans.append('^')
        ans.append('>')
        ch += 1
        cw += 1
        t -= 2
    elif abs(ch-gh):
        ans.append('^>')
        ans.append('<')
        ch += 1
        t -= 1
    else:
        ans.append('^>')
        ans.append('v')
        cw += 1
        t -= 1

while t:
    ans.append('<')
    ans.append('>')
    t -= 2

YES()
for s in ans:
    print(s)