[huò zhōng yǒu fú]   

祸    中    有    福    指不幸之中也包含着产生幸运的因素。

祸中有福是一个成语，意思是指不幸之中也包含着产生幸运的因素。出自《淮南子·说林训》。

Something that seems to be a problem at first, but that has good results in the end

祸从口生    祸福相生    祸福由人    祸不单行    祸起萧墙