Write a NumPy program to append values to the end of an array

import numpy as np
x = [10, 20, 30]
print("Original array:")
print(x)
x = np.append(x, [[40, 50, 60], [70, 80, 90]])
print("After append values to the end of the array:")
print(x)

Sample Output:

Original array:                                                         
[10, 20, 30]                                                            
After append values to the end of the array:                            
[10 20 30 40 50 60 70 80 90]