C1111233133313231133133313331333133311221123121111331333131122112322221131   >>    C111123313331323113313331333133313331122112312111133133313112211232222113   <<    C1111233133313231133133313331333133311221123121111331333131122112322221133   >>      C1111233133313231133133313331333133311221123121111331333131122112322221132   >>