#include <string>
#include <vector>
#include <list>
#include <cmath>
#include <algorithm>
#include <map>
#include <set>
#include <iostream>
#include <cstdio>
#include <cstdlib>
using namespace std;

class PowerOfThreeEasy {
  public:
    string ableToGet(int x, int y);
};

string PowerOfThreeEasy::ableToGet(int x, int y)
{
  while (x != 0 || y != 0) {
    if ((x % 3) + (y % 3) != 1) return "Impossible";
    x /= 3;
    y /= 3;
  }
  return "Possible";
}