t, a, b = map(int, input().split())
if a > t or b > t:
    print("NO")
    exit()
if t == 1 and a == b == 0:
    print("NO")
    exit()

upp = [0] * t
rig = [0] * t
for i in range(a):
    upp[i] = 1
for i in range(b):
    rig[i] = 1

ma = max(a, b)
x = t - ma
for i in range(ma, t - 1, 2):
    upp[i] = 1
    upp[i + 1] = 2

if x & 1:
    if upp[0] != 0 and rig[0] != 0:
        upp[-1] = upp[0]
        upp[0] = 0
    elif upp[0] == 0:
        upp[0] = 1
        upp[-1] = 2
    else:
        rig[0] = 1
        rig[-1] = 2
for u, r in zip(upp, rig):
    S = ""
    if u == 1:
        S += "^"
    elif u == 2:
        S += "v"
    if r == 1:
        S += ">"
    elif r == 2:
        S += "<"
    print(S)