given a set of integers and a value for which you need to find the nearest one.

def closest(lst, K): 
    lst = sorted(lst) 
    return lst[min(range(len(lst)), key = lambda i: abs(lst[i]-K))] 
  
# Driver code 
lst = [1,2,3,4,8] 
K = 2
print(closest(lst, K))