View Compilation Error

922286_0_0_29145.cpp: In function `int main()':
922286_0_0_29145.cpp:6: error: `cin' undeclared (first use this function)
922286_0_0_29145.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
922286_0_0_29145.cpp:7: error: `cout' undeclared (first use this function)
922286_0_0_29145.cpp:7: error: `endl' undeclared (first use this function)