B331133131323131133132233133313231333132233132313331333131133133313123112121   >>    B33113313132313113313223313331323133313223313231333133313113313331312311212   <<    B331133131323131133132233133313231333132233132313331333131133133313123112123   >>      B331133131323131133132233133313231333132233132313331333131133133313123112122   >>