import java.util.*;
import java.io.*;
public class fh {
    public static void main(String[] args)throws IOException {
        Scanner fin = new Scanner(new FileReader("DATA1.txt"));
        PrintWriter fout = new PrintWriter(new FileWriter("OUT1.txt"));
        double n;
        int b;
        String s;
        for(int i=0; i<5; i++){
            n = fin.nextInt();
            n = (150*60)/n;
            n = Math.round(n);
            fout.format("%1.0f",n);
            fout.println();
        }
        fin.close();
        fout.close();
    }
}