C31232233133313221211113313331333133313112113231323133313232213233311   >>    C3123223313331322121111331333133313331311211323132313331323221323331   <<    C31232233133313221211113313331333133313112113231323133313232213233313   >>      C31232233133313221211113313331333133313112113231323133313232213233312   >>