#include <iostream>
#include <string>

#include <contrib/libs/libidn/idna.h>

using namespace std;

int main() {
    string url;

    while (cin >> url) {
        char* udata = 0;
        if (idna_to_ascii_8z(url.c_str(), &udata, 0) == IDNA_SUCCESS) {
            free(udata);
        }
    }
    return 0;
}