How to get values of an NumPy array at certain index positions?

# Importing Numpy module
import numpy as np
# Creating 1-D Numpy array
a1 = np.array([11, 10, 22, 30, 33])
print("Array 1 :")
print(a1)
a2 = np.array([1, 15, 60])
print("Array 2 :")
print(a2)
print("\nTake 1 and 15 from Array 2 and put them in\
1st and 5th position of Array 1")
a1.put([0, 4], a2)
print("Resultant Array :")
print(a1)

# Importing Numpy module
import numpy as np
# Creating 2-D Numpy array
a1 = np.array([[11, 10, 22, 30],
               [14, 58, 88, 100]])
print("Array 1 :")
print(a1)
a2 = np.array([1, 15, 6, 40])
print("Array 2 :")
print(a2)
print("\nTake 1, 15 and 6 from Array 2 and put them in 1st,\
4th and 7th positions of Array 1")
a1.put([0, 3, 6], a2)
print("Resultant Array :")
print(a1)

# Importing Numpy module
import numpy as np
# Creating 3-D Numpy array
a1 = np.array([[[11, 25, 7], [30, 45, 55], [20, 45, 7]],
               [[50, 65, 8], [70, 85, 10], [11, 22, 33]],
               [[19, 69, 36], [1, 5, 24], [4, 20, 9]]])
print("Array 1 :")
print(a1)
# Creating 2-D array
a2 = np.array([[1, 15, 10],
               [6, 40, 50],
               [11, 5, 10]])
print("\nArray 2 :")
print(a2)
print("\nTake 1, 15, 10, 6, 40 and 50 from Array 2 and put\
them in 1st, 3rd, 5th, 9th, 11th and 15th positions of Array 1")
a1.put([0, 2, 4, 8, 10, 14], a2)
print("Resultant Array :")
print(a1)

# Importing Numpy module
import numpy as np
# Creating 2-D Numpy array
a1 = np.array([[11, 10, 22],
               [14, 58, 88]])
print("Array 1 :")
print(a1)
a2 = np.array([[1, 15, 6],
               [40, 50, 70]])
print("Array 2 :")
print(a2)
print("\nTake 1 and 15 from Array 2 and put them in 1st \
and 5th positions of Array 1")
print("by mistake we write the index which is out of bound,\
now mode will play its role")
a1.put([0, 15], a2, mode='raise')
print("\nResultant Array :")
print(a1)

# Importing Numpy module
import numpy as np
# Creating 2-D Numpy array
a1 = np.array([[11, 10, 22],
               [14, 58, 88]])
print("Array 1 :")
print(a1)
a2 = np.array([[1, 15, 6],
               [40, 50, 70]])
print("Array 2 :")
print(a2)
print("\nTake 1 and 15 from Array 2 and put them in 1st and\
5th positions of Array 1")
print("by mistake we write the index which is out of bound,\
now mode will play its role")
a1.put([0, 15], a2, mode = 'clip')
print("\nResultant Array :")
print(a1)