The two masters and apprentices processed 208 parts in total, and the number of parts processed by the master was 4 times more than that of the apprentice. How many parts did the master process?
师徒二人共加工208个零件，师傅加工的零件数比徒弟的2倍还多4个．师傅加工了多少个零件？
<gadget id="calculator">208 - 4</gadget>
<output>204</output>

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

<gadget id="calculator">204 / 3</gadget>
<output>68</output>

<gadget id="calculator">2 * 68</gadget>
<output>136</output>

<gadget id="calculator">136 + 4</gadget>
<output>140</output>

<result>140</result>