#include <bits/stdc++.h>

using namespace std;

int main() {
    int n, k;
    while (cin >> n >> k) {
        cout << ((n == 0) ? "Ok!\n" : ((k == 0) ? "Impossib1e!\n" : ((n % k == 0) ? "Ok!\n" : 
"Impossib1e!\n")));   /*等於if (n == 0) {
                                            cout << "Ok!\n";
                                        } else if (k == 0) {
                                            cout << "Impossib1e!\n";
                                        } else if (n % k == 0) {
                                            cout << "Ok!\n";
                                        } else {
                                            cout << "Impossib1e!\n";
                                        }*/
    }
    return 0;
}