how to get input from list in python

1a = list(map(int,input("\nEnter the numbers : ").strip().split()))

1# number of elements 
2n = int(input("Enter number of elements : ")) 
3  
4# Below line read inputs from user using map() function  
5a = list(map(int,input("\nEnter the numbers : ").strip().split()))[:n] 
6  
7print("\nList is - ", a)

1input_string = input("Enter a list element separated by space ")
2list  = input_string.split()
3print("Calculating sum of element of input list")
4sum = 0
5for num in list:
6    sum += int (num)
7print("Sum = ",sum)
8

1lst = [ ] 
2n = int(input("Enter number of elements : ")) 
3  
4for i in range(0, n): 
5    ele = [input(), int(input())] 
6    lst.append(ele) 
7      
8print(lst)

1for i in range(0, n): 
2    ele = int(input()) 
3  
4    lst.append(ele)