C11111211113313112113313331333133313331312322121111331333132233133321123231   >>    C1111121111331311211331333133313331333131232212111133133313223313332112323   <<    C11111211113313112113313331333133313331312322121111331333132233133321123233   >>      C11111211113313112113313331333133313331312322121111331333132233133321123232   >>