Xiaohong has two stamps of 80 cents and one yuan each. How many denominations of postage can she pay with these stamps?
小红有80分和1元的邮票各两枚，她用这些邮票能付多少种面值的邮资？
<gadget id="calculator">6 + 1 + 1</gadget>
<output>8</output>

<result>8</result>