#include <iostream>
#include <algorithm>
#include <string>
using namespace std;
int main()
{
	string ans;
	int i=0;
	while(getline(cin,ans))
	{
		unsigned loc=0;
		do 
		{
			++i;
			loc=ans.find('\"',loc);
			if(loc==string::npos){--i;break;}
			if(i%2)ans.replace(loc,1,"``");
			else ans.replace(loc,1,"''");
		} while (loc!=string::npos);
		cout<<ans<<endl;
	}
	return 0;
}