#include <bits/stdc++.h>

int ri() {
	int n;
	scanf("%d", &n);
	return n;
}

int main() {
	std::string s;
	std::cin >> s;
	
	int one_cnt = std::count(s.begin(), s.end(), '1');
	
	int cnt = 0;
	bool prev = false;
	for (auto c : s) {
		if (prev && c == '0') cnt++;
		prev = c == '1';
	}
	if (prev) cnt++;
	
	bool result = (cnt == 1 && one_cnt > 1) || (cnt == 2 && one_cnt == 2);
	puts(result ? "Yes" : "No");
	return 0;
}