C11112331312111112111133133313331333132112312111111331323221323221211   >>    C1111233131211111211113313331333133313211231211111133132322132322121   <<    C11112331312111112111133133313331333132112312111111331323221323221213   >>      C11112331312111112111133133313331333132112312111111331323221323221212   >>