I want to make a game for dividing a picture into 9 parts and then jumbling them. And then the user will correctly rearrange them

image position numbers   1 	 2 	 3 
			 4 	 5 	 6 
			 7 	 8 	 9
for swapping the images... if you want 3rd image in first position... answer the question... first position => img3
Which image do you want in the first position =>img3
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-8-e34762103183> in <module>()
      2 print("for swapping the images... if you want 3rd image in first position... answer the question... first position => img3")
      3 a=input("Which image do you want in the first position =>")
----> 4 img13=np.ndarray(a)
      5 cv2_imshow(img13)
      6 b=np.array(input("Which image do you want in the second position =>"))

TypeError: 'str' object cannot be interpreted as an integer

import numpy as np

import cv2 as cv
from google.colab.patches import cv2_imshow

img=cv.imread("5.jpg")
cv2_imshow(img)

img0 = cv.resize(img ,(600,372))#for being able to work with the second image
cv2_imshow(img0)

type(img0)

img1=img0[0:124,0:200]
img2=img0[0:124,200:400]
img3=img0[0:124,400:600]
img4=img0[124:248,0:200]
img5=img0[124:248,200:400]
img6=img0[124:248,400:600]
img7=img0[248:372,0:200]
img8=img0[248:372,200:400]
img9=img0[248:372,400:600]

cv2_imshow(img1)
cv2_imshow(img2)
cv2_imshow(img3)
cv2_imshow(img4)
cv2_imshow(img5)
cv2_imshow(img6)
cv2_imshow(img7)
cv2_imshow(img8)
cv2_imshow(img9)

img10=cv.hconcat([img7, img4, img2])
img11=cv.hconcat([img9, img1, img6])
img12=cv.hconcat([img5, img3, img8])

cv2_imshow(img10)
cv2_imshow(img11)
cv2_imshow(img12)

print("image position numbers   1 \t 2 \t 3 \n\t\t\t 4 \t 5 \t 6 \n\t\t\t 7 \t 8 \t 9")
print("for swapping the images... if you want 3rd image in first position... answer the question... first position => img3")
a=input("Which image do you want in the first position =>")
img13=np.ndarray(a) #error line
cv2_imshow(img13)
b=np.array(input("Which image do you want in the second position =>"))
img14=cv.hconcat([a,b])
cv2_imshow(img14)
c=np.array(input("Which image do you want in the third position =>"))
img15=cv.hconcat([a,b,c])
cv2_imshow(img15)
d=np.array(input("Which image do you want in the fourth position =>"))
img16=cv.hconcat([d])
cv2_imshow(img15)
cv2_imshow(img16)
e=np.array(input("Which image do you want in the fifth position =>"))
img17=cv.hconcat([d,e])
cv2_imshow(img15)
cv2_imshow(img17)
f=np.array(input("Which image do you want in the sixth position =>"))
img18=cv.hconcat([d,e,f])
cv2_imshow(img15)
cv2_imshow(img18)
g=np.array(input("Which image do you want in the seventh position =>"))
img19=cv.hconcat([g])
cv2_imshow(img15)
cv2_imshow(img18)
cv2_imshow(img19)
h=np.array(input("Which image do you want in the eight position =>"))
img20=cv.hconcat([g,h])
cv2_imshow(img15)
cv2_imshow(img18)
cv2_imshow(img20)
i=np.array(input("Which image do you want in the ninth position =>"))
img21=cv.hconcat([g,h,i])
cv2_imshow(img15)
cv2_imshow(img18)
cv2_imshow(img21)