View Code of Problem 13

#include<bits/stdc++.h>
using namespace std;
int main(){
	int h,a,b,k,d=1;
	while(cin>>h>>a>>b>>k&&h!=EOF){
		cout<<"Case #"<<d<<": ";
		d++;
		if(h-a<=0)
		cout<<"White win"<<endl;
		else{
			if((a-b)*k>b)
			cout<<"White win"<<endl;
			else
			cout<<"Unknow"<<endl;
		}
		
	} 
	
	return 0;
}