#line 2 "/home/cocojapanpan/Procon_CPP/proconLibrary/lib/template/procon.hpp" #ifndef DEBUG // 提出時にassertはオフ #ifndef NDEBUG #define NDEBUG #endif // 定数倍高速化 #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #endif #include using namespace std; using ll = long long; #define ALL(x) (x).begin(), (x).end() template using vec = vector; template inline bool chmax(T &a, const S &b) { return (a < b ? a = b, 1 : 0); } template inline bool chmin(T &a, const S &b) { return (a > b ? a = b, 1 : 0); } template constexpr T INF = 1'000'000'000; template <> constexpr int INF = 1'000'000'000; template <> constexpr ll INF = ll(INF) * INF * 2; #line 2 "main.cpp" #include #include using namespace atcoder; using mint = static_modint<258280327>; int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); int N; cin >> N; vec A(N + 1); for(int i = 0; i <= N; i++) { ll x; cin >> x; A[i] = x; } int M; cin >> M; vec B(M + 1); for(int i = 0; i <= M; i++) { ll x; cin >> x; B[i] = x; } vec ans = convolution(A, B); cout << N + M << "\n"; for(int i = 0; i <= N + M; i++) { cout << ans[i].val() << (i != N + M ? " " : "\n"); } }