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void Encoder_Hamming(int in[4], int out[7]) 
//(7, 4) บบร๗ย๋ฑเย๋ฦ๗ 
{ 
	int j; 
	for (j = 0; j <= 3; j++) 
		out[j] = in[j]; 
	out[4] = in[0] ^ in[1] ^ in[2]; 
	out[5] = in[0] ^ in[1] ^ in[3]; 
	out[6] = in[0] ^ in[2] ^ in[3];	 
}