玄关，求助！[ABC332B] Glass and Mug

#include<bits/stdc++.h>
using namespace std;
int k,g,m,glass,mug;
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);cout.tie(0);
	cin>>k>>g>>m;
	mug=m;k-=1;
	while(k--){
		if(glass==g) glass=0;
		else if(glass==0){
			if(mug!=m) glass=mug,mug=0;
			else glass=g,mug-=g;
		}
		else if(!mug) mug=m;
	}
	cout<<glass<<" "<<mug<<endl;
	return 0;
}
//貌似只对了三个点，额……