Задание 27 #04

N = int(input())
a = [0] * 4
for i in range(N):
    x, y = map(int, input().split())
    if x > 0 and y > 0:
        a[0] += 1
    elif x < 0 and y > 0:
        a[1] += 1
    elif x < 0 and y < 0:
        a[2] += 1
    elif x > 0 and y < 0:
        a[3] += 1
m = 0
for i in range(4):
    if a[i] > m:
        m = a[i]
        chet_max = i+1
print(f'K = {chet_max}')