B331133131323131133132233133313231323331323223313331333132213121   >>    B33113313132313113313223313331323132333132322331333133313221312   <<    B331133131323131133132233133313231323331323223313331333132213123   >>      B331133131323131133132233133313231323331323223313331333132213122   >>