Parameters
    ----------
    n : int
        n strokes were make

def get_possible_splits(n):
    """
    Parameters
    ----------
    n : int
        n strokes were make
    """
    get_bin = lambda x, n: x >= 0 and str(bin(x))[2:].zfill(n) or "-" + str(bin(x))[3:].zfill(n)
    possible_splits = []
    for i in range(2**(n - 1)):
        possible_splits.append(get_bin(i, n - 1))
    return possible_splits