code: def multiply(matA: list, matB: list) -> list:
      """
      Multiplies two square matrices matA and matB of size n x n
      Time Complexity: O(n^3)
      """
      n = len(matA)
      matC = [[0 for i in range(n)] for j in range(n)]
  
      for i in range(n):
          for j in range(n):
              for k in range(n):
                  matC[i][j] += matA[i][k] * matB[k][j]
  
      return matC
  
label_desc: Use image node_id 1 for calling a global function with example usage: multiply(matA, matB) and returns: matC