def count(side):
    sides = {}
    for a in range(1, side // 3 + 1):
        for b in range(a + 1, (side - a) // 2):
            c = int((a ** 2 + b ** 2) ** 0.5)
            if (a ** 2 + b ** 2) == c ** 2:
                s = a + b + c
                sides[s] = sides.setdefault(s, 0) + 1
    return max(sides, key=lambda x: sides[x])

print(count(1000))