B331133131323131133132233133313231333132233132313331333131323131232322111   >>    B33113313132313113313223313331323133313223313231333133313132313123232211   <<    B331133131323131133132233133313231333132233132313331333131323131232322113   >>      B331133131323131133132233133313231333132233132313331333131323131232322112   >>