#include<bits/stdc++.h>
using namespace std;
int main(){
	int X;
	cin>>X;
	if(X<13){
		if(X>2 && X<6)cout<<"spring"<<endl;
		else if(X>6 && X<8)cout<<"summer"<<endl;
		else if(X>8 && X<11)cout<<"fall"<<endl;
		else if(X>11 && X<3)cout<<"winter"<<endl;
	}
	return 0;
}