def matrix_mult(a,b,c):
  X = a
  Y = b
  Z = c

  resa = []
  resb = []


  resulta = [[sum (a*b for a,b in zip(X_row, Y_col)) for Y_col in zip(*Y)] for X_row in X]
  resultb = [[sum(a*b for a,b in zip (X_row, Z_col)) for Z_col in zip(*Z)] for X_row in X]

  for r in resulta:
    resa.append(r)
  print (resa)
  print("\n")
  for r in resultb:
    resb.append(r)
  print(resb)

matrix_mult(x,y,z)