[HackerRank] 02. Sum and Prod

import numpy as np
if __name__ == '__main__':
    N, M = input().split()

my_arr = []
for _ in range(int(N)):
    my_arr.append(list(map(int, input().split())))

np_sum = np.sum(my_arr, axis = 0)
print(np.prod(np_sum))