Fix the order of multiplication for speed
Fix the order of multiplication for speed

okuta/chainer,wkentaro/chainer,AlpacaDB/chainer,chainer/chainer,kashif/chainer,chainer/chainer,pfnet/chainer,hvy/chainer,hvy/chainer,jnishi/chainer,t-abe/chainer,chainer/chainer,kiyukuta/chainer,aonotas/chainer,wkentaro/chainer,okuta/chainer,wkentaro/chainer,muupan/chainer,ktnyt/chainer,sinhrks/chainer,ysekky/chainer,muupan/chainer,t-abe/chainer,AlpacaDB/chainer,keisuke-umezawa/chainer,okuta/chainer,kikusu/chainer,wkentaro/chainer,hvy/chainer,niboshi/chainer,cupy/cupy,anaruse/chainer,ktnyt/chainer,cupy/cupy,okuta/chainer,ktnyt/chainer,keisuke-umezawa/chainer,benob/chainer,jnishi/chainer,niboshi/chainer,ktnyt/chainer,rezoo/chainer,cupy/cupy,chainer/chainer,cupy/cupy,benob/chainer,jnishi/chainer,sinhrks/chainer,hvy/chainer,niboshi/chainer,truongdq/chainer,niboshi/chainer,ronekko/chainer,keisuke-umezawa/chainer,jnishi/chainer,truongdq/chainer,cemoody/chainer,delta2323/chainer,kikusu/chainer,keisuke-umezawa/chainer,tkerola/chainer