在 python 中乘 n 次后每个字符之间添加空格

Question

So basically we have to enter 2 lists. Then each of the list elements is added to its corresponding element (as shown in the example below) to create a sum list. Then we take a string and take the first character of the string. We then multiply the character with the numbers from the sum list. The problem I'm having is that I want to add a space every time the character is repeated (as shown below).

This is my code:

l1 = [i for i in eval(input("Enter a list: "))]
l2 = [i for i in eval(input("Enter another list: "))]
symbol = input("Enter symbol: ")


summation = []
for (i1, i2) in zip(l1, l2):
    summation.append(i1+i2)

i = 0
while i < len(summation):
    print(summation[i] , symbol[0]*summation[i])
    i += 1

This is how my output looks:

Enter a list: 1,2,3
Enter another list: 1,2,3
Enter symbol: hello world
2 hh
4 hhhh
6 hhhhhh

This is how I want my output to look:

Enter a list: 1,2,3
Enter another list: 1,2,3
Enter symbol: hello world
2 h h
4 h h h h
6 h h h h h h

Can someone please help me? It might be a stupid question but I would really appreciate it!

Answer 1

Replace

symbol[0]*summation[i]

with

(symbol[0] + " ")*summation[i]