#
# Example file for HelloWorld
#
def main():
  print("Hello Spring")
  print("*\n**\n***")
  a = int(input("Nhap so a: "))
  b = int(input("Nhap so b: "))
  print("Tong a + b: ", a+b)
  print("hello em iu")

if __name__ == "__main__":
  main()