C11112331312111112111133133313331333133313112113313331333133313231333133313311   >>    C1111233131211111211113313331333133313331311211331333133313331323133313331331   <<    C11112331312111112111133133313331333133313112113313331333133313231333133313313   >>      C11112331312111112111133133313331333133313112113313331333133313231333133313312   >>