2 / Лаба 2.6

import csv
FILENAME = "input_2.csv"
with open(FILENAME, "r", newline="") as file:
    reader = csv.reader(file)
    row_count = sum(1 for row in reader)
    sum = 0
    summin = 0
    def poisk_summ(n, a):
        if n == 1:
            sum = sum + a[n]
            if sum < summin:
                summin = sum
        else:
            for i in range (0, n):

    print(row_count)