#include <bits/stdc++.h>
using namespace std;
const int INF = int(1e9) + 99;
int gcd(int a, int b) {
  if (b == 0) return a;
  return gcd(b, a % b);
}
bool sortbyfirstdec(const pair<int, int> &a, const pair<int, int> &b) {
  if (a.first == b.first) return a.second > b.second;
  return a.first > b.first;
}
bool sortbyfirstinc(const pair<int, int> &a, const pair<int, int> &b) {
  if (a.first == b.first) return a.second < b.second;
  return a.first < b.first;
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int i, j, k;
  bool a[6][6];
  for (i = 1; i <= 5; i++) {
    for (j = 1; j <= 5; j++) {
      a[i][j] = false;
    }
  }
  int x, y;
  int t;
  cin >> t;
  while (t--) {
    cin >> x >> y;
    a[x][y] = true;
    a[y][x] = true;
  }
  for (i = 1; i <= 5; i++) {
    for (j = 1; j <= 5; j++) {
      for (k = 1; k <= 5; k++) {
        if (i != j && j != k && k != i) {
          if (a[i][j] == a[j][k] && a[j][k] == a[k][i]) {
            cout << "WIN" << endl;
            return 0;
          }
        }
      }
    }
  }
  cout << "FAIL" << endl;
  return 0;
}
