C31232233133313221211113313331333132313331333133313331333131211113313231332211   >>    C3123223313331322121111331333133313231333133313331333133313121111331323133221   <<    C31232233133313221211113313331333132313331333133313331333131211113313231332213   >>      C31232233133313221211113313331333132313331333133313331333131211113313231332212   >>