AMDUONG C++

#include <bits/stdc++.h>
using namespace std;

int a;
int main()
{
    freopen("amduong.inp","r",stdin);
    freopen("amduong.out","w",stdout);
    cin>>a;
    if(a>0) cout<<a<<" la so duong";
    if(a==0) cout<<a<<" la so khong am khong duong";
    if(a<0) cout<<a<<" la so am";
}