C31232233133313221211113313331333133313331212111133132313233313231312311   >>    C3123223313331322121111331333133313331333121211113313231323331323131231   <<    C31232233133313221211113313331333133313331212111133132313233313231312313   >>      C31232233133313221211113313331333133313331212111133132313233313231312312   >>