38. Sun Wukong is immensely powerful; he can flip 108,000 li in one somersault, yet he can never flip out of the palm of the Buddha. When the Buddha opens his palm, it is an infinite plane. Drawing 1 straight line on an infinite, boundary-less plane can divide the plane into 2 parts; drawing 1 triangle on the plane can also divide the plane into 2 parts. Then, drawing 1 triangle, 2 circles, and 2 straight lines on the plane, what is the maximum number of parts the plane can be divided into? $\qquad$
$30$