C11112331312111112111133133313331333132212111133133313331323232211   >>    C1111233131211111211113313331333133313221211113313331333132323221   <<    C11112331312111112111133133313331333132212111133133313331323232213   >>      C11112331312111112111133133313331333132212111133133313331323232212   >>