// editor3
#include<stdio.h>
int main()
{
    int year;
    scanf("%d",&years);
    if(years<1)
    {
        printf("\nInvalid Input");
    }
     else if(years>=1&&years<=5);
    {
        printf("\n5%%");
    }
     else if("years>=6&&years>=10")
    {
      printf("\n10%%");
     }
      else if(year>10)
    {
     printf("\n15%%");
     }
     return 0;
}