#pragma GCC optimize ("O3") #pragma GCC target ("avx", "avx2") #include #include #include #include #include #include #include #include #include #include #include #include #define _rep(_1, _2, _3, _4, name, ...) name #define rep2(i, n) rep3(i, 0, n) #define rep3(i, a, b) rep4(i, a, b, 1) #define rep4(i, a, b, c) for (int i = int(a); i < int(b); i += int(c)) #define rep(...) _rep(__VA_ARGS__, rep4, rep3, rep2, _)(__VA_ARGS__) using namespace std; using i64 = long long; using u8 = unsigned char; using u32 = unsigned; using u64 = unsigned long long; using f80 = long double; const int X = 64; const int N_MAX = 1e5; const int M = (N_MAX + X - 1) / X; void lshift_or(u64* a, u64* b, int s) { int q = s / X; int r = s % X; if (r == 0) { rep(i, M) a[i + q] |= b[i]; } else { a[q] |= b[0] << r; rep(i, 1, M) { a[q + i] |= (b[i] << r) | (b[i - 1] >> (X - r)); } a[q + M] |= b[M - 1] >> (X - r); } } void set_bit(u64* a, int i) { a[i / X] |= u64(1) << (i % X); } bool get_bit(u64* a, int i) { return a[i / X] & (u64(1) << (i % X)); } void solve() { static u64 A[2 * M], B[M], C[2 * M]; int N; scanf("%d", &N); vector> As(N_MAX); rep(i, N) { int a; scanf("%d", &a); As[a - 1].push_back(i); } rep(i, N) { int b; scanf("%d", &b); if (b) set_bit(B, i); } rep(i, N_MAX) if (As[i].size()) { memset(A, 0, sizeof(A)); for (auto&& a : As[i]) lshift_or(A, B, a); rep(i, 2 * M) C[i] ^= A[i]; } rep(i, 2 * N - 1) { puts(get_bit(C, i) ? "ODD" : "EVEN"); } } int main() { clock_t beg = clock(); solve(); clock_t end = clock(); fprintf(stderr, "%.3f sec\n", double(end - beg) / CLOCKS_PER_SEC); return 0; }