Robert enjoyed his summer holiday. He spent half of it working in a music store. He spent half of the remaining time reading and relaxing at home, and, after spending $$4$$ days at a friend\textquotesingle s house, he had exactly $$2$$ weeks left to attend a summer camp. How long (in days) was his summer holiday?  Answer~\uline{~~~~~~~~~~}~ 
Overseas Competition->Knowledge Point->Word Problem Modules->Periodic Problems->Periodic Problems of Time->Period of Dates