#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include //#include const double EPS = (1e-10); using namespace std; using Int = long long; //using namespace boost::multiprecision; const Int MOD = 1000000007; Int mod_pow(Int x, Int n) { Int res = 1; while(n > 0) { if(n & 1) res = (res * x) % MOD; //ビット演算(最下位ビットが1のとき) x = (x * x) % MOD; n >>= 1; //右シフト(n = n >> 1) } return res; } template T gcd(T a, T b) { return b != 0 ? gcd(b, a % b) : a; } template T lcm(T a, T b) { return a * b / gcd(a, b); } Int a[15]; Int b[15]; int main(){ cin.tie(0); int n; cin >> n; for (int i = 0; i < n; i++){ cin >> a[i]; } int n2; cin >> n2; for (int i = 0; i < n2; i++){ cin >> b[i]; } for (int i = n2-1; i > 0; i--){ a[0] *= b[i]; } for (int i = n-1; i > 0; i--){ b[0] *= a[i]; } if (b[0] < -1){ b[0] *= -1; a[0] *= -1; } Int GCD = gcd(a[0], b[0]); cout << a[0]/GCD << " " << b[0]/GCD << endl; }