View Code of Problem 64

#include<iostream>
#include<cstring>
#include<string.h>
using namespace std;
int main(){
	int station,sum,p;
	while(~scanf("%d%d%d",&station,&p,&sum)){
		if(sum == 0 && station == 0 && p == 0)break;
		for(int i = 1;i < station - 1;i++){
			if(p-p/2+p > sum)break;
			p = p - p / 2 + p;
		}
		printf("%d\n",p);
	}
	return 0;
}