#include <bits/stdc++.h>
using namespace std;
ifstream in("input.txt");
ofstream out("output.txt");
vector<int> v[500001];
vector<vector<int>> v2(101), g2(101);
vector<pair<int, int>> vi[100001];
set<int> st;
int vis[100001] = {0};
int a[100001];
vector<int> ar;
int ma = 0;
int arr[6][6] = {0};
int c = 0;
int main() {
  int n, x, y;
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> x >> y;
    arr[x][y] = arr[y][x] = 1;
  }
  for (int i = 1; i <= 5; i++) {
    for (int j = 1; j <= 5; j++) {
      for (int k = 1; k <= 5; k++) {
        if (((arr[i][j] && arr[j][k] && arr[k][i]) ||
             (!arr[i][j] && !arr[j][k] && !arr[k][i])) &&
            (i != j && k != j && k != i)) {
          cout << "WIN";
          return 0;
        }
      }
    }
  }
  cout << "FAIL";
  return 0;
}
