text: // https://www.urionlinejudge.com.br/judge/en/problems/view/1247
  
  #include <iostream>
  #include <cmath>
  
  using namespace std;
  
  int main() {
  
    float d, f, g, n, distancia_perpendicular = 12;
  
    while(scanf("%f %f %f", &d, &f, &g) != EOF) {
      n = sqrt((144 + d*d));
  
      if ((12 / f) < (n / g))
        cout << 'N' << endl;
      else
        cout << 'S' << endl;
    }
  
    return 0;
  }
  