import java.io.*;
import java.text.*;
class DataExa{
public static void main(String[] args){
File file1,file2;
	   FileOutputStream outStream;
	   FileInputStream inStream;
	   DataInputStream dataIn;
	   DataOutputStream dataOut;
	   DecimalFormat df=new DecimalFormat("0000 ");
	   try{
	       file1= new File("test1.txt");
	       file2= new File("test2.txt");
	       inStream = new FileInputStream(file1);
	       outStream = new FileOutputStream(file2);
	       dataIn = new DataInputStream(inStream);
	       dataOut = new DataOutputStream(outStream);
	       int count=dataIn.available();
	       for(int i=0;i<count;i++){
	           int data=dataIn.readByte();
	           if (!Character.isLetter((char)data)){
System.out.println((char)data);
		 dataOut.writeInt(data);}
	           }
	}catch(IOException e){
	System.out.println("error:" + e);
}
}
}