#include <bits/stdc++.h>
using namespace std;
char s[200000];
int main()
{
int c=0,i;
while(gets(s))
{
for(i=0;i<strlen(s);i++)
{
if(s[i]=='"')
{
c++;
if(c/2==0)
printf("``");
else
printf("''");
}
else
printf("%c",s[i]);;
}
printf("\n");
}
return 0;
}
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