from math import sqrt

def is_inside(x, y, x1, y1, x2, y2, x3, y3):
    s = get_square(x1, y1, x2, y2, x3, y3)
    s1 = get_square(x, y, x2, y2, x3, y3)
    s2 = get_square(x1, y1, x, y, x3, y3)
    s3 = get_square(x1, y1, x2, y2, x, y)
    s_new = s1 + s2 + s3
    pogr = 0.01
    return abs(s_new - s) < pogr


def get_square(x1, y1, x2, y2, x3, y3):
    a = sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2))
    b = sqrt((x2 - x3) * (x2 - x3) + (y2 - y3) * (y2 - y3))
    c = sqrt((x1 - x3) * (x1 - x3) + (y1 - y3) * (y1 - y3))
    p = (a + b + c) / 2
    try:
        s = sqrt(p * (p - a) * (p - b) * (p - c))
    except ValueError:
        print(p - a, p - b, p - c)
        return False
    return s


tr = '''4 10 10 4 1 1
-7 10 0 3 -10 0
17 23 -1 2 -1 23
-77 -10 -5 -20 -80 -23
4 1 5 9 5 1
-12 20 -10 8 -10 20
60 60 90 93 90 60
3 0 20 23 0 20
-7 -30 10 -47 10 -30
-10 40 25 -7 -13 -10'''.split('\n')
x1, y1, x2, y2, x3, y3 = map(int, tr[0].split())
for x in range(-100, 101):
    for y in range(-100, 101):
        if is_inside(x, y, x1, y1, x2, y2, x3, y3):
            pass
            #print(x, y)
#print(tr)