View Compilation Error

1055712_0_0_9204.cpp: In function `int main()':
1055712_0_0_9204.cpp:8: error: `cin' undeclared (first use this function)
1055712_0_0_9204.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
1055712_0_0_9204.cpp:15: error: `cout' undeclared (first use this function)
1055712_0_0_9204.cpp:15: error: `endl' undeclared (first use this function)