5+68empty space, 5, plus, 68 = (3 + = (3+equals, left parenthesis, 3, plus 5) + 68) + 68right parenthesis, plus, 68 = 3 + (=3 + (equals, 3, plus, left parenthesis + 68) + 68) plus, 68, right parenthesis = 3 + =3+equals, 3, plus 70 = =equals 73
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