s = ['Sarina', 'sam',
     'Behrad', 'Amirhossen',
     'Behdad', 'Alireza']

s.append('Ezhdeha')
print(s)

s.pop()
print(s)
s = ['Sarina', 'sam',
     'Behrad', 'Amirhossen',
     'Behdad', 'Alireza']

s.append('Ezhdeha')
print(s)

s.pop()
print(s)