Dongdong invites three classmates to go to the movies. After buying the tickets, there are one 10 yuan, one 5 yuan and two 1 yuan left. At this time, two more classmates came, and Dongdong also wanted to invite them to watch together, but he found that there was still a difference of 3 yuan. May I ask: How much is Dongdong in total?
冬冬请三名同学去看电影，买完票之后还剩下一张10元钱、一张5元钱和两张1元钱．这时又来了两名同学，冬冬也想请他们一起看，可是他发现还差3元钱．请问：冬冬一共有多少钱？
<gadget id="calculator">10 + 5 + 2 + 3</gadget>
<output>20</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">3 + 1 + 2</gadget>
<output>6</output>

<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">60 - 3</gadget>
<output>57</output>

<result>57</result>