B331133131323131133132233133313231333132212113313331333133313233311231221   >>    B33113313132313113313223313331323133313221211331333133313331323331123122   <<    B331133131323131133132233133313231333132212113313331333133313233311231223   >>      B331133131323131133132233133313231333132212113313331333133313233311231222   >>