B331133131323131133132233133313231323132333133313133313331323221323133112121   >>    B33113313132313113313223313331323132313233313331313331333132322132313311212   <<    B331133131323131133132233133313231323132333133313133313331323221323133112123   >>      B331133131323131133132233133313231323132333133313133313331323221323133112122   >>