_{mg^{\prime}o}^{xk} \geq 0,m = 0,0,\cdots,M_{k};k = 0,0,\cdots,K;} \\ {{\sum\limits_{g = 0}^{G}{\sum\limits_{n \in g^{\prime},n \neq o\ if\ g = g^{\prime}}{\gamma_{gn}^{k}y_{rgn}^{k}}}} - y_{rg^{\prime}o}^{k} + 