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CHIP Mux {
    IN a, b, sel;
    OUT out;

    PARTS:
	Not(in=sel, out=nandSel);
    And(a=a, b=nandSel, out=aAndSel);
	And(a=sel, b=b, out=bAndSel);
	Or(a=aAndSel, b=bAndSel, out=out);
	
}