B331133131323131133132233133313233313133313223313331323223313231333132322121221   >>    B33113313132313113313223313331323331313331322331333132322331323133313232212122   <<    B331133131323131133132233133313233313133313223313331323223313231333132322121223   >>      B331133131323131133132233133313233313133313223313331323223313231333132322121222   >>