C1111233133313231133133313331333133313231331133133313331323131232313221   >>    C111123313331323113313331333133313331323133113313331333132313123231322   <<    C1111233133313231133133313331333133313231331133133313331323131232313223   >>      C1111233133313231133133313331333133313231331133133313331323131232313222   >>