# your code goes here
# n input lelo
n = sys.stdin.readline()
n = input lelo
t1 = 0
t = 1
s1 = 0
s = 1
#output t1 and t
for i in range (2,n)
t = s + t
print t
s = s + t
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCgojIG4gaW5wdXQgbGVsbwpuID0gc3lzLnN0ZGluLnJlYWRsaW5lKCkKbiA9IGlucHV0IGxlbG8gCnQxID0gMAp0ID0gMQpzMSA9IDAKcyA9IDEKI291dHB1dCAgIHQxIGFuZCB0CmZvciBpIGluIHJhbmdlICgyLG4pCgl0ID0gcyArIHQKCXByaW50ICB0CglzID0gcyArIHQK
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/py_compile.py", line 117, in compile
raise py_exc
py_compile.PyCompileError: File "prog.py", line 5
n = input lelo
^
SyntaxError: invalid syntax