B331133131323131133132233133313233313133313223313331323133313231323121   >>    B33113313132313113313223313331323331313331322331333132313331323132312   <<    B331133131323131133132233133313233313133313223313331323133313231323123   >>      B331133131323131133132233133313233313133313223313331323133313231323122   >>