my code not working

[pycoder10]

I was messing around in python and I remembered something which my Maths teacher taught me and I turned it into code. So here it is:

TriSide1 = input('measure of 1st side of Triangle - ')
TriSide2 = input('measure of 2nd side of Triangle - ')
TriSide3 = input('measure of 3rd side of Triangle - ' )
if ((TriSide1 + TriSide2) > TriSide3) and ((TriSide2 + TriSide3) > TriSide1) and ((TriSide3 + TriSide1) > TriSide2):
  print('A proper triangle is formed')
else:
  print('A proper triangle is not formed') 

The problem is that it is not working as it is supposed to do as you can see from the code and the output that you will get. (I entered numbers 2,3,4 and it says that a proper triangle is not formed)only when I entered the same numbers did the code say that a proper triangle is formed. Is it because I am using online python sites and not the downloaded one? or is it a bug? I wish someone can help me out.

[buran]

input() will return str. you need to convert that to int/float using int() or float() function