#!/usr/bin/python3
def main():
	x=None
	y=None
	try:
		x=input("Δώσε x:")
		y=input("Δώσε y:")
		z=eval(x)+eval(y)
		print(f'x+y={z}')
	except Exception as e:
		print("Exception 1:", str(e))
		#exit (1)
	finally:
		print("go on")
if __name__=="__main__":
	main()