import java.util.*;
public class main{
    public static void main(String[] args) {
        try{
            int a;
            Scanner in=new Scanner(System.in);
            a=in.nextInt();
            
            in.close();
            switch(a)
            {
            	case 3:
            	case 4:
            	case 5:
                	System.out.print("spring");
                	break;
				case 6:
				case 7:
				case 8:
            		System.out.print("summer");
            		break;
				case 9:
				case 10:
				case 11:
            		System.out.print("fall");
            		break;
            	case 1:
            	case 2:
            	case 12:
            		System.out.print("winter");	
            		break;
            	default:
                    System.out.print("error");	
             }	
        }catch(Exception e){
            System.out.println("Input error!");
        }
    }
};