import util
from more_itertools.recipes import sliding_window as sw

input = util.get_input("1.input", int)

def day_1(input, size):
    return len([1 for [a, b] in sw(sw(input, size), 2) if sum(a) < sum(b)])

print(day_1(input, 1))
print(day_1(input, 3))