View Compilation Error

651748_0_0_11905.cpp:3: error: expected `=' before ';' token
651748_0_0_11905.cpp:3: error: expected identifier before ';' token
651748_0_0_11905.cpp:3: error: unknown namespace `<declaration error>'
651748_0_0_11905.cpp: In function `int main()':
651748_0_0_11905.cpp:4: error: `cin' undeclared (first use this function)
651748_0_0_11905.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
651748_0_0_11905.cpp:4: error: `string' undeclared (first use this function)
651748_0_0_11905.cpp:4: error: expected `;' before "s"
651748_0_0_11905.cpp:4: error: `s' undeclared (first use this function)
651748_0_0_11905.cpp:4: error: `cout' undeclared (first use this function)
651748_0_0_11905.cpp:4: error: `endl' undeclared (first use this function)