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