/* -*- coding: utf-8 -*-
 *
 * 2350.cc:  No.2350 Four Seasons - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  int x;
  scanf("%d", &x);

  if (x >= 3 && x <= 5) puts("spring");
  else if (x >= 6 && x <= 8) puts("summer");
  else if (x >= 9 && x <= 11) puts("fall");
  else puts("winter");
  
  return 0;
}