C31232233133313221211113313331333131211113313231333131123313232221   >>    C3123223313331322121111331333133313121111331323133313112331323222   <<    C31232233133313221211113313331333131211113313231333131123313232223   >>      C31232233133313221211113313331333131211113313231333131123313232222   >>