Uri 2235 - Walking in Time

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

int main(){
        int f,v,p;
          cin>>f>>v>>p;
        if(f == p  ||  v == p  ||  f == v  ||  f+v == p  ||  v+p == f  ||  f+p == v)
            cout<<"S"<<endl;
        else
            cout<<"N"<<endl;

    return 0;
}