View Compilation Error

1005609_0_0_31614.cpp: In function `int main()':
1005609_0_0_31614.cpp:6: error: `cin' undeclared (first use this function)
1005609_0_0_31614.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
1005609_0_0_31614.cpp:18: error: `cout' undeclared (first use this function)