C31232233133313221211113313331333133313331212111113331323232233132313233311   >>    C3123223313331322121111331333133313331333121211111333132323223313231323331   <<    C31232233133313221211113313331333133313331212111113331323232233132313233313   >>      C31232233133313221211113313331333133313331212111113331323232233132313233312   >>