C1111233133313231133133313231333133313113313113313112211231331122211   >>    C111123313331323113313331323133313331311331311331311221123133112221   <<    C1111233133313231133133313231333133313113313113313112211231331122213   >>      C1111233133313231133133313231333133313113313113313112211231331122212   >>