B331133131323131133132233133313233313331323133211331333133313231323211231221   >>    B33113313132313113313223313331323331333132313321133133313331323132321123122   <<    B331133131323131133132233133313233313331323133211331333133313231323211231223   >>      B331133131323131133132233133313233313331323133211331333133313231323211231222   >>