Help, this is a python program porblem

Exercise $3\mathrm{.}2a-$ Pyramid Number Problem

A pyramidal number has the form $1^2+2^2+3^2+$dots..or example the forth pyramidal number is $30$ because:

$1^2+2^2+3^2{?}^4{?}^2=1+4+9+16=30$

It is also known as the cannonball stacking number becasue it represents how much spherical cannonballs

can be stacked in a pyramid shape with a given number of rows.

Your program should:

Ask the user how many rows of cannonballs they want to stack

Calculate the total number of cannonballs that will create the pyramid with the specified rows

Your program should:

$1)$ Ask the user how many rows of cannonballs they want to stack

$2)$ Calculate the total number of cannonballs that will create the pyramid with the specified rows