#!/usr/bin/python3
#global variable
g=3
print(id(g))
def hello(name,loud=False):
	if loud:
		print (f"Hello {name}")
	else:
		pass

def add(x,y):
	return x+y

def addv(p):
	p=p+1
	return p
def madd():
	global g
	g=g+1

def main():
	global g
	g=2
	try:
		hello("test",True)
		x=eval(input("Δώσε x:"))
		y=eval(input("Δώσε y:"))
		print (f"Αποτέλεσμα={add(x,y)}")
		print(addv(x))
		#g=2
		madd()
		print(f"g={id(g)},g={g}")
	except Exception as e:
		print ("error:"+str(e))
if __name__=="__main__":
	main()