Let's see.
Left wall: 4 dots = 4
Right wall: 3 bars and 4 dots = 15 + 4 = 19
Left Floor: line with a dot = 6
Right floor: three bars with 4 dots = 19
Right box: 19 + 19 = 38 (carry the 20 to the left as 1) = 18
Left box: 4 + 6 + 1 (carried from right box) = 11
Enter on the wall:
left box = 2 bars and 1 dot = 11
right box = 3 bars and 3 dots = 18
Hope that makes it for you.

and hugs to family.