#include <bits/stdc++.h>
using namespace std;
int main() {
	int N, K, X, Y;
	cin >> N >> K >> X >> Y;
	if (Y == 0) {
		puts("No");
		return 0;
	}
	if (K == 1) {
		int lst = X + (N - 1);
		if (Y < lst) {
			puts("No");
		} else {
			puts("Yes");
			for (int i = 0; i < N-1; i ++) {
				cout << X + i << " ";
			}
			cout << Y << endl;
		}
		return 0;
	}
	std::vector<int> ans(N, 1);
	ans[0] = X;
	if (K & 1) {
		ans[1] = 1; ans[2] = X ^ 1;
		if (ans[2] == 0) {
			ans[1] = 2; ans[2] = X ^ 2;
		}
		for (int i = 3; i < K; i ++) ans[i] = 1;
	} else {
		ans[1] = X;
		for (int i = 2; i < K; i ++) ans[i] = 1;
	}
	ans.back() = Y;
	for (int i = K; i < N-1; i ++) {
		ans[i] = ans[i-K];
	}
	if (X == 0) {
		if (K & 1) {
			if (N == K + 1) {
				for (int i = 1; i < N-1; i ++) ans[i] = 0;
			} else if (N >= K + 3) {
				for (int i = 1; i < K; i ++) ans[i] = 1;
				ans[K] = 2; ans[K+1] = 3;
				for (int i = K+2; i < N-1; i ++) ans[i] = ans[i-K];
			} else {
				if (Y == 1) {
					puts("No");
					return 0;
				} else {
					for (int i = 1; i < N-2; i ++) {
						ans[i] = 0;
					}
					ans[N-2] = 1;
				}
			}
		} else {
			if (N >= K + 3) {
				ans[1] = 1;
				for (int i = 2; i < N-1; i ++) ans[i] = 3;
			} else if (N == K + 2) {
				if (Y == 1) {
					puts("No");
					return 0;
				}
				for (int i = 2; i < K; i ++) ans[i] = 0;
				ans[K-1] = 2;
				ans[K] = 3;
			} else {
				for (int i = 1; i < N-1; i ++) ans[i] = 0;
			}
		}
	}
	puts("Yes");
	for (int& a : ans) cout << a << " ";
	cout << endl;
}