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#include <iostream>
#include <string>
#include <locale>
using namespace std;
int main()
{
cin.imbue(locale::classic());
cout.imbue(locale("de_DE"));
double v;
cin>>v;
cout<<v;
}
#include <iostream>
#include <string>
#include <locale>
using namespace std;
int main()
{
cin.imbue(locale::classic());
//cout.imbue(locale("de_DE"));
double v;
cin>>v;
cout<<v;
}
cout.imbue(locale("de_DE"));
cout.imbue(locale("de_DE"));