#include<bits/stdc++.h>
using namespace std;
int main(){
	int X;
	cin>>X;
	if(X<13 && 0<X){
		if(X>=3 && X<=5)cout<<"spring"<<endl;
		else if(X>=5 && X<=7)cout<<"summer"<<endl;
		else if(X>=8 && X<=11)cout<<"fall"<<endl; 
		else cout<<"winter"<<endl;
	}
	return 0;
}