C11112331312111112111133132313331333133313232212111113331323113311   >>    C1111233131211111211113313231333133313331323221211111333132311331   <<    C11112331312111112111133132313331333133313232212111113331323113313   >>      C11112331312111112111133132313331333133313232212111113331323113312   >>