def METHOD_NAME(self):
    i = self.HASH256_NUM_SLOTS - 1
    str = []
    while i >= 0:
        word = self.w[i] & 0xFFFF
        j = 15
        while j >= 0:
            if (word & (1 << j)) != 0:
                str.append("1")
            else:
                str.append("0")
            j -= 1
        i -= 1
    return " ".join(str)