#include using namespace std; #include using namespace atcoder; using ll = long long; using vll = vector; using vvll = vector; using vvvll = vector; using vvvvll = vector; using vvvvvll = vector; using vvvvvvll = vector; using vb = vector; using vvb = vector; using vvvb = vector; using vvvvb = vector; using vd = vector; using vvd = vector; using vvvd = vector; using vvvvd = vector; using vvvvvd = vector; #define all(A) A.begin(),A.end() #define ALL(A) A.begin(),A.end() #define rep(i, n) for (ll i = 0; i < (ll) (n); i++) using pqr = priority_queue, vector>, greater>>; template bool chmax(T& p, T q, bool C = 1) { if (C == 0 && p == q) { return 1; } if (p < q) { p = q; return 1; } else { return 0; } } template bool chmin(T& p, T q, bool C = 1) { if (C == 0 && p == q) { return 1; } if (p > q) { p = q; return 1; } else { return 0; } } ll gcd(ll(a), ll(b)) { if (a == 0)return b; if (b == 0)return a; ll c = a; while (a % b != 0) { c = a % b; a = b; b = c; } return b; } ll sqrtz(ll N) { ll L = 0; ll R = sqrt(N) + 10000; while (abs(R - L) > 1) { ll mid = (R + L) / 2; if (mid * mid <= N)L = mid; else R = mid; } return L; } /* using mint = modint998244353; //using Mint = modint; vector fact, factinv, inv; const ll mod = 998244353; void prenCkModp(ll n) { fact.resize(n + 5); factinv.resize(n + 5); inv.resize(n + 5); fact[0] = fact[1] = 1; factinv[0] = factinv[1] = 1; inv[1] = 1; for (ll i = 2; i < n + 5; i++) { fact[i] = (fact[i - 1] * i); inv[i] = mod - (inv[mod % i] * (mod / i)); factinv[i] = (factinv[i - 1] * inv[i]); } } mint nCk(ll n, ll k) { if (n < k || k < 0) return 0; return fact[n] * (factinv[k] * factinv[n - k]); } */ template vector> mul(vector> A, vector> B) { ll N = A.size(); vector> res(N, vector(N, 0)); rep(i, N)rep(j, N)rep(k, N) { res[i][j] += A[i][k] * B[k][j]; } return res; } struct rollinghash { const ll base = 9973; const vector MoD = { 999999937, 1000000007 }; string S; vector hash[2], power[2]; rollinghash(const string& cs) { init(cs); } ll Shash(string T, ll iter) { ll n = T.size(); ll reshash = 0; ll respow = 1; rep(i, n) { reshash = (reshash * base + T[i]) % MoD[iter]; } return reshash; } void init(const string& cs) { S = cs; ll n = S.size(); rep(iter, MoD.size()) { hash[iter].assign(n + 1, 0); power[iter].assign(n + 1, 1); rep(i, n) { hash[iter][i + 1] = (hash[iter][i] * base + S[i]) % MoD[iter]; power[iter][i + 1] = power[iter][i] * base % MoD[iter]; } } } ll get(int l, int r, int id = 0) const { return ((hash[id][r] - (hash[id][l] * power[id][r - l]) % MoD[id]) + MoD[id]) % MoD[id]; } ll getLCP(int a, int b) const { int len = min((int)S.size() - a, (int)S.size() - b); int low = -1, high = len + 1; while (high - low > 1) { int mid = (low + high) / 2; if (get(a, a + mid, 0) != get(b, b + mid, 0)) high = mid; else if (get(a, a + mid, 1) != get(b, b + mid, 1)) high = mid; else low = mid; } return low; } }; ll op(ll a, ll b) { return a + b; } ll e() { return 0; } using mint=modint998244353; int main() { ll A,B,C; cin>>A>>B>>C; cout<<(((A+B-1)/B)*2>=((A+C-1)/C)*3?"YES":"NO")<