SyntaxError: unexpected EOF while parsing in Python 3

SyntaxError: unexpected EOF while parsing in Python 3

Code :
n,X=input(),0
for t in range(int(n)):
eval(input())
print(X)
Traceback (most recent call last):
File "prog.py", line 3, in <module>
eval(input())
File "<string>", line 1
X++
^
SyntaxError: unexpected EOF while parsing
Using raw_input instead of input() in the only solution I am able to find
but in python 3.x input is raw_input(): How do I use raw_input in Python
3.1
any other method?
FYI; I am trying to solve: http://codeforces.com/problemset/problem/282/A