#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; bool bo[1000010] = { false }; int main() { int a, b, c, d, e; cin >> a >> b >> c >> d >> e; int co = 0; for (int i = 0; i < (a + b) * (c + d); i++) { if (i % (a + b) < a && i % (c + d) < c) { bo[i] = true; co++; } } int ans = co * (e / ((a + b) * (c + d))); for (int i = 0; i < e % ((a + b) * (c + d)); i++) { if (bo[i]) { ans++; } } cout << ans << endl; }