s_tup = hello <class 'str'> s1_tup = ('hello',) <class 'tuple'> s2_tup = hello <class 'str'> s3_tup = ('hello',) <class 'tuple'>
s_tup = hello <class 'str'> s1_tup = ('hello',) <class 'tuple'> s2_tup = hello <class 'str'> s3_tup = ('hello',) <class 'tuple'>