#include<stdio.h>
int main(){
    int X;
    scanf("%d",&X);
    switch(X){
        case 3:
        case 4:
        case 5:
           printf("spring");
           break;
        case 6:
        case 7:
        case 8:
            printf("summer");
            break;
        case 9:
        case 10:
        case 11:
            printf("fall");
            break;
        case 12:
        case 1:
        case 2:
            printf("winter");
            break;
    }
    return 0;
}