C312322331333132212111133133313331323133313221211113313331313232233312311   >>    C31232233133313221211113313331333132313331322121111331333131323223331231   <<    C312322331333132212111133133313331323133313221211113313331313232233312313   >>      C312322331333132212111133133313331323133313221211113313331313232233312312   >>