View Compilation Error

52089_0_9142.cpp: In function `int main()':
52089_0_9142.cpp:6: error: `cin' undeclared (first use this function)
52089_0_9142.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
52089_0_9142.cpp:10: error: `cout' undeclared (first use this function)
52089_0_9142.cpp:10: error: `endl' undeclared (first use this function)