import java.io.*;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String[] arr = br.readLine().split(" ");
TDate t = new TDate();
t.setDate(arr);
t.getDate();
}
private static class TDate {
private int month;
private int day;
private int year;
public TDate() {}
public void getDate() {
StringBuilder sb = new StringBuilder();
sb.append(day).append("/").append(month).append("/").append(year);
System.out.print(sb.toString());
}
public void setDate(String[] array) {
year = Integer.parseInt(array[0]);
month = Integer.parseInt(array[1]);
day = Integer.parseInt(array[2]);
}
}
}