B331133131323131133132233133313231333132233132313331333131323221212121   >>    B33113313132313113313223313331323133313223313231333133313132322121212   <<    B331133131323131133132233133313231333132233132313331333131323221212123   >>      B331133131323131133132233133313231333132233132313331333131323221212122   >>