#include<iostream>
#include<string.h>
using namespace std;

int main(){

char x[100];
bool rec = true;

while(cin.getline(x, 100)){

for(int i = 0; i<strlen(x); i++)
if(x[i] == '"'){
if(rec)
cout << "``";
else
cout << "''";

rec = !rec;
}
else
cout << x[i];

cout << endl;
}
}