Given the following shapes: a trapezoid with bases 5 and 5 and height 1, a right_triangle with base 4 and height 5, a right_triangle with base 1 and height 6. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Trapezoid with bases 5, 5 and height 1: Area = 0.5 x (5 + 5) x 1 = 5.0
Right triangle with base 4 and height 5: Area = 0.5 x 4 x 5 = 10.0
Right triangle with base 1 and height 6: Area = 0.5 x 1 x 6 = 3.0</think>

<answer>18</answer>