#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  long long int n;
  cin >> n;
  vector<vector<int>> v(6);
  for (long long int i = 0; i < n; i++) {
    long long int x, y;
    cin >> x >> y;
    v[x].push_back(y);
    v[y].push_back(x);
  }
  bool f = false;
  for (long long int i = 1; i <= 5; i++) {
    for (auto c : v[i]) {
      for (auto d : v[i]) {
        for (auto e : v[c]) {
          if (e == d) {
            f = true;
            break;
          }
        }
        if (f) break;
      }
      if (f) break;
    }
  }
  for (long long int i = 1; i < 6; i++) {
    bool boo[6]{};
    for (auto c : v[i]) boo[c] = 1;
    boo[i] = 1;
    for (long long int j = 1; j < 6; j++) {
      if (!boo[j]) {
        bool coo[6]{};
        coo[j] = 1;
        for (auto c : v[j]) coo[c] = 1;
        for (long long int k = 1; k < 6; k++) {
          if (boo[k] == 0 && coo[k] == 0) {
            f = true;
            break;
          }
        }
      }
      if (f) break;
    }
    if (f) break;
  }
  if (f)
    cout << "WIN";
  else
    cout << "FAIL";
}
