C1111233133313231133133313331333133311221123121111331333132231123231   >>    C111123313331323113313331333133313331122112312111133133313223112323   <<    C1111233133313231133133313331333133311221123121111331333132231123233   >>      C1111233133313231133133313331333133311221123121111331333132231123232   >>