05

#include<bits/stdc++.h>
#include<math.h>
using namespace std;
class Prime
{
public:
int i,j;
double k;
int isP;
void output(){

for(i=3;i<=1000;i=i+2){
isP=1;
k=sqrt(i);
for(j=3;j<=k;j++){
if(i%j==0){
isP=0;
break;
}
}
if(isP){
cout<<i;
cout<<" ";
}

}
}
};
int main(){
Prime f;
cout<<2;
cout<<" ";
f.output();
}