C3132121111331312113313331333133313113313331311331333132233313221   >>    C313212111133131211331333133313331311331333131133133313223331322   <<    C3132121111331312113313331333133313113313331311331333132233313223   >>      C3132121111331312113313331333133313113313331311331333132233313222   >>