View Code of Problem 13

#include<stdio.h>
#include<iostream>
using namespace std;
 
int main() {
	int h, a, b, k;
	int n = 1;
	while (scanf("%d%d%d%d", &h, &a, &b, &k) != EOF) {
		cout << "Case #" << n << ": ";
		while (k--) {
			h = h - a;
			if (h <= 0)
				break;
			else
				h = h + b;
		}
		if (h > 0) {
			cout << "Unknow\n";
		}
		else {
			cout << "White win\n";
		}
		n++;
	}
 
	return 0;
}