79( a )

Ei Ehɪ x ɮ

BzɭivxMʙn x ɮ | { |

Mhn Jhɪ x ɮ

ɨPɴ xbə Eʮə x ɮ

vMɪʮi i{ x ɮ

n MֳxM ɳM ɮ | 1 |

ʮɭMn xn x ɮ

iɯ Mʮ x ɮ

ʮn xzɪ EhM ɮ

+䲳nʮ i x ɮ | 2 |

M Mɴ Ebɮ

xx Mn V ɮ

Vɯinɪ M ɮ

=nɮ |ɺzE] x ɮ | 3 |