C11112331312111112111133133313331333132212111133133313331323133313121311   >>    C1111233131211111211113313331333133313221211113313331333132313331312131   <<    C11112331312111112111133133313331333132212111133133313331323133313121313   >>      C11112331312111112111133133313331333132212111133133313331323133313121312   >>