// you can also use imports, for example:
// import java.util.*;

// you can write to stdout for debugging purposes, e.g.
// System.out.println("this is a debug message");

class Solution {
    public int solution(int N) {
        // write your code in Java SE 8
    }
}

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

def solution(N):
    # write your code in Python 3.6
    pass

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

def solution(N):
    # write your code in Python 3.6
    

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    start = int(math.sqrt(N))
    while start >= 1:
        

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    start = int(math.sqrt(N))
    while start >= 1:
        if N % start

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % start == 0:
            return 2 * (N / start + start)
        

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N / i + i)
        i -= 1

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N / i + i)
        i -= 1

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N // i + i)
        i -= 1

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N // i + i)
        i -= 1

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N // i + i)
        i -= 1

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N // i + i)
        i -= 1

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

import math

def solution(N):
    # write your code in Python 3.6
    i = int(math.sqrt(N))
    while i >= 1:
        if N % i == 0:
            return 2 * (N // i + i)
        i -= 1