C1111233133313231133133313331333133311221123121111331322331312331   >>    C111123313331323113313331333133313331122112312111133132233131233   <<    C1111233133313231133133313331333133311221123121111331322331312333   >>      C1111233133313231133133313331333133311221123121111331322331312332   >>