为什么我用C-free5.0运行下面这个程序怎么老出错,哪错了?

为什么我用C-free5.0运行下面这个程序怎么老出错,哪错了?
#include
#include
int main()
{
x09const double pi = 4.0 * atan(1.0);
x09double r,h,s1,s2,s;
x09scanf("%lf%lf",&r,&h);
x09s1 = pi*r*r;
x09s2 = 2*pi*r*h;
x09s = s1*2.0 + s2;
x09printf("Area = %.31fn",s)
x09return 0;
}
--------------------配置:mingw5 - CUI Debug,编译器类型:MinGW--------------------
检查文件依赖性...
正在编译 C:UsersAdministratorDocumentsC-FreeTemp未命名1.cpp...
[Error] C:UsersAdministratorDocumentsC-FreeTemp未命名1.cpp:12:error:expected `;' before "return"
[Warning] C:UsersAdministratorDocumentsC-FreeTemp未命名1.cpp:13:2:warning:no newline at end of file
构建中止 未命名1:1 个错误,1 个警告