import numpy as np



N = int(eval(input()))



mp = int(np.sqrt(N))

print((mp**2))
from math import sqrt, floor

N = int(eval(input()))



print((floor(sqrt(N))**2))

import numpy as np

N = int(eval(input()))
mp = int(np.sqrt(N))
print((mp**2))

from math import sqrt, floor

N = int(eval(input()))
print((floor(sqrt(N)) ** 2))

-import numpy as np +from math import sqrt, floor -mp = int(np.sqrt(N)) -print((mp**2)) +print((floor(sqrt(N)) ** 2))