#include <bits/stdc++.h>
using namespace std;
long double pi = 3.141592653589793238;
set<long long>::iterator it;
multiset<long long>::iterator itr;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  ;
  long long t;
  t = 1;
  while (t--) {
    long long m;
    cin >> m;
    set<pair<long long, long long>> s1;
    for (long long i = 0; i < m; i++) {
      long long x, y;
      cin >> x >> y;
      s1.insert(make_pair(x, y));
      s1.insert(make_pair(y, x));
    }
    long long fl = 0;
    for (long long p1 = 1; p1 <= 5; p1++) {
      for (long long p2 = p1 + 1; p2 <= 5; p2++) {
        for (long long p3 = p2 + 1; p3 <= 5; p3++) {
          if (s1.find(make_pair(p1, p2)) != s1.end() &&
              s1.find(make_pair(p2, p3)) != s1.end() &&
              s1.find(make_pair(p3, p1)) != s1.end()) {
            fl = 1;
          } else if (s1.find(make_pair(p1, p2)) == s1.end() &&
                     s1.find(make_pair(p2, p3)) == s1.end() &&
                     s1.find(make_pair(p3, p1)) == s1.end()) {
            fl = 1;
          }
        }
      }
    }
    if (fl == 1)
      cout << "WIN" << endl;
    else
      cout << "FAIL" << endl;
  }
}
