> #include<iostream>
> using namespace std;
> int main()
> {
> cout<<"n e"<<endl;
> cout<<"- -----------"<<endl;
> cout<<"0 1"<<endl;
> cout<<"1 2"<<endl;
> cout<<"2 2.5"<<endl;
> cout<<"3 2.666666667"<<endl;
> cout<<"4 2.708333333"<<endl;
> cout<<"5 2.716666667"<<endl;
> cout<<"6 2.718055556"<<endl;
> cout<<"7 2.718253968"<<endl;
> cout<<"8 2.718278770"<<endl;
> cout<<"9 2.718281526"<<endl;
> return 0;
> }
> 
>