#include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n<0)
    {
        printf("invalid input");
        return 0;
    }
    int a=5,b=4,c=3,sum;
    sum = a+b+c/n;
    printf("%d",&sum);
    scanf("%d",&sum);
    return 0;
}