1print("hello world".find("ll"))
2print("hello world".find("ll", None))
3print("hello world".find("ll", 1))
4print("hello world".find("ll", 1, None))
5print("hello world".find("ll", None, None))
6print("hello world".find("ll", 1, -1))
7print("hello world".find("ll", 1, 1))
8print("hello world".find("ll", 1, 2))
9print("hello world".find("ll", 1, 3))
10print("hello world".find("ll", 1, 4))
11print("hello world".find("ll", 1, 5))
12print("hello world".find("ll", -100))
13print("0000".find('0'))
14print("0000".find('0', 0))
15print("0000".find('0', 1))
16print("0000".find('0', 2))
17print("0000".find('0', 3))
18print("0000".find('0', 4))
19print("0000".find('0', 5))
20print("0000".find('-1', 3))
21print("0000".find('1', 3))
22print("0000".find('1', 4))
23print("0000".find('1', 5))
24print("aaaaaaaaaaa".find("bbb", 9, 2))
25
26try:
27    'abc'.find(1)
28except TypeError:
29    print('TypeError')
30