[Pinyin] ]]chéng Wang báI kòu u
[Interpretation] The old meaning is that in the struggle for political power, success is legal, and the emperor is the king; Those who fail are illegal and called robbers. The winner holds the power, no one dares to blame, but the loser has the meaning of being difficult to argue.
[Source] Liu Yazi's "War History" poem: "Victory and defeat call each other, who goes straight to Donghu."