C11112331312111112111133133313331333133313111321133132313331323211   >>    C1111233131211111211113313331333133313331311132113313231333132321   <<    C11112331312111112111133133313331333133313111321133132313331323213   >>      C11112331312111112111133133313331333133313111321133132313331323212   >>