View Compilation Error

0_0_30367789_8789.cpp: In function 'int main()':
0_0_30367789_8789.cpp:17:71: error: expected primary-expression before '<<' token
      cout<<hex<<int(p[3])<<hex<<int(p[2])<<hex<<int(p[1])<<int(p[0])<<<<int(p[0])<<endl;
                                                                       ^