#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; int tot = A + B * 10; rep(pay, 1, 201) { int rest = tot - pay; if (rest < 0) continue; int cnt = rest / 10 + rest % 10; if (cnt == C) { cout << pay << endl; return; } } cout << "Impossible" << endl; }