•—ŠΤ‰ΞŒŽ-—…™‹-
•KŽE‹Z
˜Z“Ή—σ‰Ξ+A
₯’Η‰Α1˜Z“Ή—σ‰ΞŒγ+B
₯₯’Η‰Α2’Η‰Α1Œγ+C
‹π˜A‹r+AorBorCorD
₯’Η‰Α‹π˜A‹rŒγor+AorBorCorD(x2)
‰Š–Ε+AorBorCorD
’΄•KŽE‹Z
‰ŠŽΧŠoΑ+AB
₯’†Ž~‰ŠŽΧŠoΑ’†ABCD

–ί‚ι
‹ZTOP‚Ι–ί‚ι
TOP‚Ι–ί‚ι