View Compilation Error

28313_0_18484.cpp: In function `int main()':
28313_0_18484.cpp:2: error: `cin' undeclared (first use this function)
28313_0_18484.cpp:2: error: (Each undeclared identifier is reported only once for each function it appears in.)
28313_0_18484.cpp:2: error: `cout' undeclared (first use this function)
28313_0_18484.cpp:2: error: `endl' undeclared (first use this function)