pythondef cubic_sumn s=0 for i in range1 n+1 s += i i i return scubic_sum3

The code defines a function cubic_sum(n) that takes an integer n as input.

The function initializes a variable s to 0.

Then, using a for loop, it iterates over the range from 1 to n+1.

Inside the loop, it calculates the cube of each number i and adds it to s.

Finally, it returns the value of s.

When cubic_sum(3) is called, it will calculate the sum of the cubes of the numbers 1, 2, and 3, which is 1^3 + 2^3 + 3^3 = 1 + 8 + 27 = 36.