There are 1 yuan, 2 yuan, and 5 yuan each. Choose one or two yuan from them. How many different amounts of money can be formed in total?
有1元、2元、5元的人民币各一张，从中选择一张或两张人民币，一共可以组成多少种不同的钱数．
<gadget id="calculator">1 + 2 + 1 + 2</gadget>
<output>6</output>

<result>6</result>