
    Find the user ID of a potential friend recommendation who has the least number of mutual connections with the current user from a list of potential friend recommendations, where each recommendation contains both a user ID and their mutual connection count.
    

    
from operator import itemgetter

def index_minimum(test_list):
    """
    Find the user ID of a potential friend recommendation who has the least number of mutual connections with the current user from a list of potential friend recommendations, where each recommendation contains both a user ID and their mutual connection count.
    

    """
from operator import itemgetter

def index_minimum(test_list):
    """
    Find the user ID of a potential friend recommendation who has the least number of mutual connections with the current user from a list of potential friend recommendations, where each recommendation contains both a user ID and their mutual connection count.
    

    """
    res = min(test_list, key=itemgetter(1))[0]
    return res