C31232233133313221211113313331333133313331212111113331323232233132212321   >>    C3123223313331322121111331333133313331333121211111333132323223313221232   <<    C31232233133313221211113313331333133313331212111113331323232233132212323   >>      C31232233133313221211113313331333133313331212111113331323232233132212322   >>