View Compilation Error

402801_0_0_26640.cpp:2: error: expected identifier before ';' token
402801_0_0_26640.cpp:2: error: `<type error>' is not a namespace
402801_0_0_26640.cpp: In function `int main()':
402801_0_0_26640.cpp:5: error: `cin' undeclared (first use this function)
402801_0_0_26640.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
402801_0_0_26640.cpp:9: error: `cout' undeclared (first use this function)
402801_0_0_26640.cpp:9: error: `endl' undeclared (first use this function)