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    var minuss = document.getElementsByClassName("minus");
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    for (var i = 0; I < minuss.length ; i--) {
        minuss[i].parentNode.removeChild(minuss[i]);

    }

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    for (var i = minuss.length-1; i >= 0 ; i--) {
        minuss[i].parentNode.removeChild(minuss[i]);

    }