C1111233133313231133133313331333133311221123121111331333133313331311332113311   >>    C111123313331323113313331333133313331122112312111133133313331333131133211331   <<    C1111233133313231133133313331333133311221123121111331333133313331311332113313   >>      C1111233133313231133133313331333133311221123121111331333133313331311332113312   >>