#include<stdio.h>
int main()
{
    int age;
    scanf("%d",&age);
    if(age<0||age>120)
    {
        printf("Invalid input");
    }
    else if(age>=18)
    {
        printf("Eligible");
    }
    else(age<=18)
    {
        printf("Not Eligible");
    }
return 0;
}