C111113331333132322331333133313331333133313121111331333132313331333133311113111   >>    C11111333133313232233133313331333133313331312111133133313231333133313331111311   <<    C111113331333132322331333133313331333133313121111331333132313331333133311113113   >>      C111113331333132322331333133313331333133313121111331333132313331333133311113112   >>