#include<stdio.h>
int main()
{    
    int years;
    scanf("%d",&years);
    if(years<=1&&years>=5)
    {
        printf("%%5");
    }
     else if(years<=6&&years>=10);    
    {
        printf("%%10");
        
    }
    else if(years<=10)
    {
       printf("%%15");
       
    }
    else(years>1);
    {
        printf("Invalid Input");
    }
    
    return 0;
}