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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _michael_b(m_l, m_r):
 """Defined in 802.11i p.49"""

    m_r = m_r ^ _rotate_left32(m_l, 17)
    m_l = (m_l + m_r) % 2**32
    m_r = m_r ^ _XSWAP(m_l)
    m_l = (m_l + m_r) % 2**32
    m_r = m_r ^ _rotate_left32(m_l, 3)
    m_l = (m_l + m_r) % 2**32
    m_r = m_r ^ _rotate_right32(m_l, 2)
    m_l = (m_l + m_r) % 2**32
    return m_l, m_r