对称代码:(i)x个−年,−年,−z(z)+1/2; (ii)−x个−1/3,−年+1/3,−z(z)+1/3; (iii)−x个+年−2/3,年−1/3,z(z)+1/6; (iv)−x个−2/3,−x个+年−1/3,−z(z)+1/6;(v)−年−1/3,x个−年+1/3,z(z)+1/3; (vi)−年−2/3,−x个−1/3,z(z)+1/6; (vii)x个−年−1/3,x个+1/3,−z(z)+1/3;(viii)年−2/3,x个−4/3,−z(z)+1/6; (ix)x个−4/3,年+1/3,z(z)+1/3; (x)x个−1,年,z(z); (十一)年−1/3,−x个+年−2/3,−z(z)+1/3; (十二)−x个+1,−x个+年,−z(z)+1/2; (十三)−年+1,x个−年,z(z); (十四)−x个+年+1,−x个,z(z); (十五)x个+1,年,z(z); (十六)年+1,x个,−z(z)+1/2; (十七)x个−年+1,−年,−z(z)+1/2; (十八)年+1,x个−1,−z(z)+1/2; (十九)x个−年+4/3,x个+2/3,−z(z)+2/3; (xx)x个−年+1,x个,−z(z); (二十一)年+1,−x个+年,−z(z); (二十二)−x个+1,−年,−z(z); (二十三)−x个+2,−年,−z(z); (二十四)x个−年+5/3,x个+1/3,−z(z)+1/3; (二十五)−x个+年+1/3,−x个−1/3,z(z)−1/3; (二十六)−年+4/3,x个−年+2/3,z(z)−1/3;(二十七)年+2/3,−x个+年−2/3,−z(z)+1/3; (二十八)−x个+年−2/3,−x个−1/3,z(z)−1/3. |