C31232233133313221211113313331333132313331322121133133313332332211   >>    C3123223313331322121111331333133313231333132212113313331333233221   <<    C31232233133313221211113313331333132313331322121133133313332332213   >>      C31232233133313221211113313331333132313331322121133133313332332212   >>