@staticmethod
def c():
    (n, k, *t) = map(int, sys.stdin.read().split())
    t = np.array(t).reshape(n, k)
    x = np.zeros((1, 1), dtype=np.int8)
    for i in range(n):
        x = (x.reshape((- 1), 1) ^ t[i])
    print(('Found' if (np.count_nonzero((x == 0)) > 0) else 'Nothing'))
@staticmethod
def c():
    (n, k, *t) = map(int, sys.stdin.read().split())
    t = np.array(t).reshape(n, k)
    x = np.zeros((1, 1), dtype=np.int8)
    for i in range(n):
        x = (x.reshape((- 1), 1) ^ t[i])
    print(('Found' if (np.count_nonzero((x == 0)) > 0) else 'Nothing'))