Given the following shapes: a right_triangle with base 2 and height 1, a right_triangle with base 8 and height 3. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 2 and height 1: Area = 0.5 x 2 x 1 = 1.0
Right triangle with base 8 and height 3: Area = 0.5 x 8 x 3 = 12.0</think>

<answer>13</answer>