import numpy as np
def main():
    arr = [1, 3, 2, 2, 5, 3, 8, 2]
    
    # Convert the above array into ndarray
    arr = np.array(arr)
    
    print(type(arr))
    
    # Use where to find all the indexes of 2
    x = np.where(arr==2)
    
    print(x)
    return 0

if __name__ == '__main__':
    main()