#include <bits/stdc++.h>
using namespace std;
int main() {
	int h1, a1, c1;
	int h2, a2;
	cin >> h1 >> a1 >> c1;
	cin >> h2 >> a2;
	if (a1 == h2) {
		cout << 1 << endl << "STRIKE" << endl;
		return 0;
	}
	int sum1 = 0;
	sum1 += int(ceil(h2 * 1.0 / a1 * 1.0));
	int sum2 = 0;
	if(sum1 * a2 - h1!=0)
		sum2 += int(ceil((sum1 * a2 - h1) * 1.0 / c1 * 1.0));
	cout << sum1 + sum2 << endl;
	for (int i = 1; i <= sum2; i++) {
		cout << "HEAL" << endl;
	}
	for (int i = 1; i <= sum1; i++) {
		cout << "STRIKE" << endl;
	}
	return 0;
}

请dalao指点指点