from sqrt import sqrt

while True:

num = float(input("num: "))

intervalo = 0

with open("log", "w") as f:

ultimo = 0

i= 0

while i <= num:

res = sqrt(i)

f.write('(%.1f, %f)\n' % (i, i-res.real**2))#((i**(1/2))-res.real)))

i+= 1