What is fault in BMI calculator

Question

I need to submit it as test
https://code.sololearn.com/c63K4TUE819w/?ref=app

Answer 1

x=float(input())
s=float(input())

z= x/(s*s)

if z<=18.5:

print("Underweight")

elif z>=25 and z<30:
print("Overweight")

elif z<25 and z>=18.5:
print("Normal")
elif z>=30 :
print("Obesity")

Answer 2

There were spelling mistakes present in the code and the case of upper and lower case