B331133131323131133132233133313231333132212113313331333131232322122321   >>    B33113313132313113313223313331323133313221211331333133313123232212232   <<    B331133131323131133132233133313231333132212113313331333131232322122323   >>      B331133131323131133132233133313231333132212113313331333131232322122322   >>