View Compilation Error

0_0_2686288_29334.cpp:2: error: expected constructor, destructor, or type conversion before string constant
0_0_2686288_29334.cpp:2: error: expected `,' or `;' before string constant
0_0_2686288_29334.cpp: In function `int main()':
0_0_2686288_29334.cpp:24: error: `cin' undeclared (first use this function)
0_0_2686288_29334.cpp:24: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2686288_29334.cpp:31: error: `cout' undeclared (first use this function)
0_0_2686288_29334.cpp:32: error: `endl' undeclared (first use this function)