#include <stdio.h>
int main()
{
    int years;
    scanf("%d" , &years);
    if(years <1)
    {
        printf("Invald Input");
    }
    else if (years >=1 && years<=5)
    {
        printf("5%%");
    }
    else if(years >=6 && years <=10)
    {
        printf("100%");
    }
    else
    {
        printf("15%%");
    }
    return 0;
}