@extern
def output_float64(x: float):
    ...

def output_ndarray_float_1(n: ndarray[float, Literal[1]]):
    for i in range(len(n)):
        output_float64(n[i])

def output_ndarray_float_2(n: ndarray[float, Literal[2]]):
    for r in range(len(n)):
        for c in range(len(n[r])):
            output_float64(n[r][c])

def run() -> int32:
    hello = np_ones((3, 4))
    # output_float64(hello[2, 3])
    output_ndarray_float_1(hello[::-2, 2])
    return 0