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<form action="https://www.coinpayments.net/index.php" method="post">

<input type="hidden" name="cmd" value="_pay_simple">

<input type="hidden" name="reset" value="1">

<input type="hidden" name="merchant" value="145812957f83ed238607394558fc6a7f">

<input type="hidden" name="item_name" value="1月会员">

<input type="hidden" name="item_desc" value="DMMDOWn">

<input type="hidden" name="currency" value="CNY">

<input type="hidden" name="amountf" value="20.00000000">

<input type="hidden" name="want_shipping" value="0">

<input type="image" src="https://www.coinpayments.net/images/pub/buynow-blue2.png" alt="Buy Now with CoinPayments.net">

</form>