/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "12��00a1A10a0000000abcdef0ghijkl0abcde000000f0gh1a0bcded1234z1234  z000000000000002";
        String t = "12ɹ00a1A10a0000000abcdef0ghijkl0abcde000000f0gh1a0bcded1234z1234  z000000000000002";
        System.out.println(removeElems(s));
        System.out.println(removeElems(t));
	}
	public static String removeElems(String str) {
        str = str.replaceAll("[^A-Za-z0-9 ]", "");
        return str;
    }
}

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