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

typedef modint998244353 mint;
typedef long long ll;

int main(){
	int x; cin >> x;
	if (3 <= x && x <= 5){
		cout << "spring\n";
	}else if (x <= 6 && 8 <= x){
		cout << "summer\n";
	}else if (x <= 9 && 11 <= x){
		cout << "fall\n";
	}else{
		cout << "winter\n";
	}
	
}