#define _USE_MATH_DEFINES #include "bits/stdc++.h" using namespace std; #define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i)) #define rep(i,j) FOR(i,0,j) #define each(x,y) for(auto &(x):(y)) #define mp make_pair #define MT make_tuple #define all(x) (x).begin(),(x).end() #define debug(x) cout<<#x<<": "<<(x)< >(b,vector(c,d)) #define vvv(a,b,c,d,e) vector > >(b,vv(a,c,d,e)) using ll = long long; using pii = pair; using vi = vector; using vll = vector; int N, K; void test() { int a = 1000; int k = 1; vi g(a + 1); for (int i = 1; i <= a; ++i) { set S; for (int j = max(0, i - k); j < i; ++j) { S.insert(g[j]); } while (S.count(g[i]))g[i]++; cout << g[i] << endl; } } int main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); cin >> N >> K; vi A(N); int grundy = 0; rep(i, N) { cin >> A[i]; grundy ^= A[i] % (K + 1); } cout << (grundy ? "YES" : "NO") << endl; }