In Xiaoming's pocket, there are 5 pictures of Monkey King, 3 pictures of Zhu Bajie, and 7 pictures of Tang Monk. Then at least how many pictures are taken from the pocket to ensure that 3 identical pictures are taken out.
小明口袋里有5张孙悟空画片，3张猪八戒画片，7张唐僧画片．那么至少从口袋里取多少张画片，才能保证取出了3张相同的画片．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<result>7</result>