Your task is to write pseudocode for a function named CSS$\_$positions$($n$1,$n$2,$n$3)$ that takes $3$ parameters from the user:

n$1$: number of items in row $1$

n$2$: number of items in row $2$

n$3$: number of items in row $3$

The function should calculate the coordinates for each of the rectangular elements. Your code should:

Check to make sure that the user hasn't asked for too many elements in a row. The function must output a unique error message if there are too many elements in a row.

Place $10$ px of spacing in between rectangular elements and in between rows, but not add spacing at the beginning and end of the row.

Output the coordinates of the rectangular elements somewhere in the pseudocode.