#include<bits/stdc++.h>
using namespace std;
int n,m,x,a;
int main()
{
   cin>>n>>x;
   for(int i=1;i<=n;i++)
   {            
   	cin>>m;
   	x=x-m;
   	if(x<=0)
   	{
   	a=i;
	break;
	}
   }
   if(x>0) cout<<"WIN";
   else if(x==0&&a==n) cout<<"KO";
   else cout<<a; 
}