def introduce():
    print ('Hello, I\'m Gittie Vol. 2!')
    print('Hello, I\'m Gittie! - THIS IS OLEKS CHANGE!')
def add(a, b):
    c = a + b
    return c
introduce()
introduce()
def joke():
    print('My computer is so slow it hertz.')
joke()
def shout():
    print('NARA!!! + nowa ZMIANA')
shout()    
