import numpy as np
from numpy import c_
print(np.r_[[1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,2', [1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,3', [1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,4', [1, 2, 3], [4, 5, 6]])
print()
print(np.ones(4))
print(np.zeros((4, 10)))

efc9e70738dfd21e22ed56b890fd398a9c62a38f
<mask token>

<mask token>
print(np.r_[[1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,2', [1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,3', [1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,4', [1, 2, 3], [4, 5, 6]])
print()
print(np.ones(4))
print(np.zeros((4, 10)))

import numpy as np
from numpy import c_
print(np.r_[[1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,2', [1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,3', [1, 2, 3], [4, 5, 6]])
print()
print(np.r_['0,4', [1, 2, 3], [4, 5, 6]])
print()
print(np.ones(4))
print(np.zeros((4, 10)))
