C31232233133313221211113313331333131211113313231313331311211321   >>    C3123223313331322121111331333133313121111331323131333131121132   <<    C31232233133313221211113313331333131211113313231313331311211323   >>      C31232233133313221211113313331333131211113313231313331311211322   >>