import numpy as np

a=np.array(10)

b=np.array([1,2,3,4,5,6,7,8,9,10])

c=np.array([[1,2,3],[4,5,6]])

d=np.array([[[1,2,9],[3,4,10]],[[5,6,11],[7,8,12]]])


print(b[1:5])

print(b[1:])

print(b[:6])

print(b[::2])

print(b[-3:-1])

print(b[-7:-1:2])

print(c[1,1:])

print(d[1,0,::2])

print(d[1,0:2,1:2])
