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