B331133131323131133132233133313231333132313132322331323232132322121   >>    B33113313132313113313223313331323133313231313232233132323213232212   <<    B331133131323131133132233133313231333132313132322331323232132322123   >>      B331133131323131133132233133313231333132313132322331323232132322122   >>