
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}')