272 - TEX Quotes

//272 - TEX Quotes
#include<iostream>
#include<string>
using namespace std;

int main(){
    string str;
    while(getline(cin, str)){
        string s;
        int i = 0,count = 0;;
        while(str[i] != '\0'){

            if(str[i] == '"'){
                count++;

                if(count > 1) {
                    s+= "''";
                    count = 0;
                    i++;
                    continue;
                }
                s += "``";
                i++;
            }
            else{
                s += str[i++];
            }

        }
        cout << s;
    }
}