C1111233133313231133133313331333133313231312111133131133133311212131   >>    C111123313331323113313331333133313331323131211113313113313331121213   <<    C1111233133313231133133313331333133313231312111133131133133311212133   >>      C1111233133313231133133313331333133313231312111133131133133311212132   >>