#include #define rep(i,a,b) for(int i=a;i=b;i--) #define fore(i,a) for(auto &i:a) #define all(x) (x).begin(),(x).end() #pragma GCC optimize ("-O3") using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60; templatebool chmax(T &a, const T &b) { if (abool chmin(T &a, const T &b) { if (b> A >> B >> C >> D; if (D == 10) { cout << "Impossible" << endl; return; } ll ans = 0; int p = 1; int tot = 0; rep(i, 0, C) { tot++; if (tot % 100 == 1 and 101 <= tot) p *= 2; ans += 0 * p; } rep(i, 0, B) { tot++; if (tot % 100 == 1 and 101 <= tot) p *= 2; ans += 50 * p; } rep(i, 0, A) { tot++; if (tot % 100 == 1 and 101 <= tot) p *= 2; ans += 100 * p; } cout << "Possible" << endl; cout << ans << endl; }