/* 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 {
		final byte[] test = new byte[8];
        test[0] = (byte) 0xF0;
        test[1] = (byte) 0x9F;
        test[2] = (byte) 0x87;
        test[3] = (byte) 0xB7;
        test[4] = (byte) 0xF0;
        test[5] = (byte) 0x9F;
        test[6] = (byte) 0x87;
        test[7] = (byte) 0xBA;
 
		final String input = "0xF0 0x9F 0x87 0xB7 0xF0 0x9F 0x87 0xBA";
		final String[] inputItems = input.trim().split(" ");
        final byte[] emojiByte = new byte[inputItems.length];
    	for (int i = 0; i < inputItems.length-1; i++) {
            emojiByte[i] = (byte) Integer.parseInt(inputItems[i+1].replace("0x", ""), 16);
    	}
    	System.out.println(Arrays.toString(test));
        System.out.println(Arrays.toString(emojiByte));
	}
}

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