Can you please let me know what the error for this code is? My output is the same as my input. Thank you!

Problem:

Swap Elements / Programming challenge description:

You are given a list of numbers which is supplemented with positions that have to be swapped.

Input:

Your program should read lines from standard input. Each line contains a list of space-delimited numbers, followed by a colon, followed by the indexes to be swapped. The first position in the list is at index 0. If there is more than one pair of indexes to be swapped, process each pair in the order they appear in the input, left to right.

Output:

Print the new list.

Test 1

Test InputDownload Test 1 Input

1 2 3 4 5 6 7 8 9 : 0-8

Expected OutputDownload Test 1 Output

9 2 3 4 5 6 7 8 1

Test 2

Test InputDownload Test 2 Input

1 2 3 4 5 6 7 8 9 10 : 0-1, 1-3

Expected OutputDownload Test 2 Output

2 4 3 1 5 6 7 8 9 10

My Code:

import sys # import numpy as np # import pandas as pd # from sklearn import ...

for line in sys.stdin: print(line, end="") l=input() nums=l.split(" : ") numbers_list=nums[0] paris=nums[1].split(", ") numbers_list=list(map(int,numbers_list.split(" "))) for pair in pairs: ind1=int(pair[0]) ind2=int(pait[2]) numbers_list[ind1],numbers_list[ind2]=numbers_list[ind2],numbers_list[ind1] print(*numbers_list)