Envío 596

Código

n = int(input())
numbers = [int(number) for number in input().split()]

assert len(numbers) == n

split_position = -1
total = sum(numbers)
left = 0
for i in range(1, n):
    left = left + numbers[i - 1]
    right = total - left
    if left > 0 and right < 0:
        split_position = i
        break

if split_position != -1:
    print(split_position)
else:
    print("Impossible")