View Compilation Error

570931_0_0_8368.cpp: In function `int main()':
570931_0_0_8368.cpp:4: error: `cin' undeclared (first use this function)
570931_0_0_8368.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
570931_0_0_8368.cpp:5: error: `cout' undeclared (first use this function)
570931_0_0_8368.cpp:5: error: `endl' undeclared (first use this function)