#include<stdio.h>
int main()
{
  int age;
  scanf("%d",&age);
  if (age>=18)
  {
     printf("\n,Eligible");
     
  }
     else if(age<18&&age>0)
  }
  
  {
      printf("\n,Not eligible"); 
  }
     else
  {
      printf("\n,Inval id input");
  }
     return 0;
}