def METHOD_NAME(x):
    x1 = x[0]
    x2 = x[1]
    g1 = 5 + 0.1 * (x1 - x2) ** 2 - (x1 + x2) / math.sqrt(2)
    g2 = 5 + 0.1 * (x1 - x2) ** 2 + (x1 + x2) / math.sqrt(2)
    g3 = (x1 - x2) + 9 / math.sqrt(2)
    g4 = (x2 - x1) + 9 / math.sqrt(2)
    return [min((g1, g2, g3, g4))]