 Gao Huan and Gao Aocao were forced to withdraw.In fall 537, Yuwen led an attack on Eastern Wei and captured Hengnong (恆農, in modern Sanmenxia as well).With Western Wei's capital region Guanzhong suffering from a famine, Yuwen remained in Hengnong to collect food from the area, but then heard that Gao Huan was again launching another attack from the northeast, forcing him to return to the Guanzhong region.