C31232233133313221211113313331333131211113313231333132321313221211   >>    C3123223313331322121111331333133313121111331323133313232131322121   <<    C31232233133313221211113313331333131211113313231333132321313221213   >>      C31232233133313221211113313331333131211113313231333132321313221212   >>