View Compilation Error

226004_0_3548.cpp: In function `int main()':
226004_0_3548.cpp:8: error: `cin' undeclared (first use this function)
226004_0_3548.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
226004_0_3548.cpp:16: error: `cout' undeclared (first use this function)
226004_0_3548.cpp:16: error: `endl' undeclared (first use this function)