C1111233133313231133133313331333133311221123121111331333133313331323232233131   >>    C111123313331323113313331333133313331122112312111133133313331333132323223313   <<    C1111233133313231133133313331333133311221123121111331333133313331323232233133   >>      C1111233133313231133133313331333133311221123121111331333133313331323232233132   >>