B331133131323131133132233133313231333132212113313331333132313211211231   >>    B33113313132313113313223313331323133313221211331333133313231321121123   <<    B331133131323131133132233133313231333132212113313331333132313211211233   >>      B331133131323131133132233133313231333132212113313331333132313211211232   >>