import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Test {
    public static void main(String[] args) throws Exception {
        String filename =  args[0];
        Test rTest = new Test();
        rTest.throeException(rTest.readFile(filename));
    }
    public void throeException(String strE){
        if(strE.contains("s") || strE.contains("u") || strE.contains("m") || strE.contains("a") || strE.contains("n")    ){
             throw new IllegalArgumentException();
         }
    }
    public String readFile(String file)
    {
        System.out.println(file);
        StringBuilder stringBuilder = new StringBuilder();
        Scanner scan;
        try {
            scan = new Scanner(new File(file));
            while (scan.hasNextLine()){
                stringBuilder.append(scan.nextLine());
            }
            scan.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return stringBuilder.toString();
    }
}