C312322331333132212111133133313331323133313233313133313231313311   >>    C31232233133313221211113313331333132313331323331313331323131331   <<    C312322331333132212111133133313331323133313233313133313231313313   >>      C312322331333132212111133133313331323133313233313133313231313312   >>