UVa272

#pragma warning(disable:4996)#include<cstdio>#include<cstring>#include<string>#include<cmath>#include<vector>#include<algorithm>#include<iostream>#include<time.h>#include<map> #include<set>#include<sstream>#include<functional>#include<cassert>#include<list>#include<iterator>#include<utility>#include <stdexcept>  #include <sstream>#include <fstream> #include<unordered_map>#include<unordered_set>using namespace std;using namespace std::placeholders;int main(){    int  q = 1;    char c;    while ((c = getchar()) != EOF)    {        if (c == '"')        {            printf("%s", q ? "``" : "''");            q = !q;        }        else            printf("%c", c);    }    return 0;}