Given the following shapes: a right_triangle with base 5 and height 3, a trapezoid with bases 3 and 1 and height 7, a right_triangle with base 7 and height 3. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 5 and height 3: Area = 0.5 x 5 x 3 = 7.5
Trapezoid with bases 3, 1 and height 7: Area = 0.5 x (3 + 1) x 7 = 14.0
Right triangle with base 7 and height 3: Area = 0.5 x 7 x 3 = 10.5</think>

<answer>32</answer>