solve based on python language

What is the output of the following small codes? Show the steps. 1- In [1]: C = [-45, 6, 0, 72, 1543] In [8]: a = 1 In [9]: b = 2 In [10] : c[a + b] Out[10]: What is the output? 2- In [13] : s = 'hello' In [14] : s[0] Out[14]: 'h' In [15]: s[0] = 'H' 3- In [18]: a_list = [] In [19]: for number in range(1, 6): a_list += [number] In [20]: a_list 4- In [24] : list1 = [10, 20, 30] In [25] : list2 [40, 50] list1 + list2 In [26]: concatenated_list In [27]: concatenated_list