#include <bits/stdc++.h>
using namespace std;
const int INF = 1 << 29;
const double EPS = 1e-9;
const int dx[] = {1, 0, -1, 0, 1, 1, -1, -1},
          dy[] = {0, -1, 0, 1, 1, -1, -1, 1};
int main() {
  cout << "POSSIBLE" << endl;
  return 0;
}
