1.(1)(y)(ng)(dng)(fi)(sh(2)::2.(1)(2)~~~~~~(3)(4)AABB:ABAC:::::1.(1)(ji)(wn)(jing)(kung)(y)(bin)(f)(q)(ru(ji)(zhng)(yng)(png)(hun)(su)(o)(2):,,:2.(1)1.(1)(yn)(s)(xn)(sh)(jn)(bng)(wi)(zhi)(shn)(ju)(qng)(po)(2):::::::2.(1)(2)~~~~~~1.(1)(p)(zhu)(ji)(q)(yu)(n)(yn)(chng)(pi)(su)()(lin)(w)(t)(y)(2):::,:::,:(1)(2),2.(1)1.(1)(chng)(jng)(xi)(gng)(xi)(ni)(sh)(zhng)(png)(2):,:::::::1.(1)(bn)(qun)(chu(nng)(j)(yn)(hu)(pi)(zhu)(shui)(xn)(ku)(y(2)::::::::::,1.(1)(si)(qn)(p(p)(ju(s)(z)(hui)(ch)(r)(x)(p)(ro)(wng)(sn)(2)::::1.(1)(rng)(jng)(w)(shn)(k)(tng)(zo)(gi)(hun)(2):::2.(1)