C111113331333132322331333133313331331121111121133133313121111132233313221   >>    C11111333133313232233133313331333133112111112113313331312111113223331322   <<    C111113331333132322331333133313331331121111121133133313121111132233313223   >>      C111113331333132322331333133313331331121111121133133313121111132233313222   >>