#define LL long long
#define SZ(x) ((int)(x).size())
#define ALL(x) (x).begin(),(x).end()
#define REP(i,n) for(int i=0;i<n;i++)
#define REV(i,n) for(int i=n-1;i>=0;i--)
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define pri(a) cout<<a<<endl
#define priii(a,b,c) cout<<a<<" "<<b<< " " <<c << endl
#define hi printf("Hello World\n");
using namespace std;
const int INF = 1<<29;
const int MX = 1e5+10;
int main()
{
string s;
int cnt = 0;
while(getline(cin,s))
{
REP(i,SZ(s))
{
if(s[i]=='"')
{
cnt++;
if(cnt%2) printf("``");
else printf("''");
}
else
printf("%c", s[i]);
}
puts("");
}
return 0;
}
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