C111123313121111121111331333133313331323221211113313233232213131   >>    C11112331312111112111133133313331333132322121111331323323221313   <<    C111123313121111121111331333133313331323221211113313233232213133   >>      C111123313121111121111331333133313331323221211113313233232213132   >>