C11112331312111112111133133313331312111112111113331333133313331323213131   >>    C1111233131211111211113313331333131211111211111333133313331333132321313   <<    C11112331312111112111133133313331312111112111113331333133313331323213133   >>      C11112331312111112111133133313331312111112111113331333133313331323213132   >>