View Code of Problem 13

#include<stdio.h>
void main()
{
	int h,a,b,k,i,j=1;
	while(scanf("%d%d%d%d",&h,&a,&b,&k)!=0)
	{
	for(i=1;i<=k;i++)
	{
		if(h-a<1)
		{
			printf("Case #%d:White win\n",j);
			h=h-a;
			break;
		}	
	h=h-a+b;	
	}
	if(h>=1)
		printf("Case #%d:Unknow\n",j);
	j++;
	}
}