C31232233133313221211113313331333133313113313331311331323232321   >>    C3123223313331322121111331333133313331311331333131133132323232   <<    C31232233133313221211113313331333133313113313331311331323232323   >>      C31232233133313221211113313331333133313113313331311331323232322   >>