Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
import copy
#import time

N = int(raw_input().replace("\n", ""))

a_array = np.asarray(sorted([int(raw_input().replace("\n", "")) for i in xrange(N)]))
len_array = a_array.shape[0]

if len_array % 2 == 0:
    elm_is = [len_array/2 -1, len_array/2]
else:
    elm_is = [(len_array-1)/2]
aa_array = a_array[elm_is]

#s_time = time.time()


sum_diffs = []
#for elm_i, start_elm in enumerate(a_array):
for elm_i, start_elm in zip(elm_is, aa_array):
    mask = np.ones(len_array, dtype=bool)
    target_elm = start_elm

    sum_diff = 0
    for count in xrange(len_array - 1):
        #c_time = time.time()
        mask[elm_i] = False
        masked_a_array = a_array[mask]
        relative_a_array = np.abs(masked_a_array[[0, -1]] - target_elm)
        #relative_a_array = np.abs(masked_a_array - target_elm)
        target_elm_index1 = np.argmax(relative_a_array)
        target_elm_index = 0 if target_elm_index1 == 0 else len(masked_a_array) - 1
        target_elm = masked_a_array[target_elm_index]
        sum_diff += relative_a_array[target_elm_index1]
        
        #print("mae:", time.time() - c_time)
        #c_time = time.time()
        count_ = -1
        for mask_i, elm in enumerate(mask):
            if elm:
                count_ += 1
                if count_ == target_elm_index:
                    elm_i = mask_i
                    break
        #print("ato:", time.time() - c_time)
    
    sum_diffs.append(sum_diff)

print max(sum_diffs)
#print(time.time() - s_time)

Fixed submission:
import numpy as np
import copy

N = int(raw_input().replace("\n", ""))

a_array = np.asarray(sorted([int(raw_input().replace("\n", "")) for i in xrange(N)]))

len_array = len(a_array)

coffs = np.ones(len(a_array), dtype=bool) * 2

if len_array % 2 == 0:
    coffs = [-2] * ((len_array - 1) / 2) + [-1] + [1] + [2] * ((len_array -1) / 2)
    out = np.dot(a_array, coffs)
else:
    coffs1 = [-2] * ((len_array-3) / 2) + [-1] * 2 + [2] * ((len_array-1) / 2)
    coffs2 = [-2] * ((len_array-1) / 2) + [1] * 2 + [2] * ((len_array-3) / 2)
    out1 = np.dot(a_array, coffs1)
    out2 = np.dot(a_array, coffs2)
    out = max(out1, out2)

print out

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
import copy
#import time

N = int(raw_input().replace("\n", ""))

a_array = np.asarray(sorted([int(raw_input().replace("\n", "")) for i in xrange(N)]))
len_array = a_array.shape[0]

if len_array % 2 == 0:
    elm_is = [len_array/2 -1, len_array/2]
else:
    elm_is = [(len_array-1)/2]
aa_array = a_array[elm_is]

#s_time = time.time()


sum_diffs = []
#for elm_i, start_elm in enumerate(a_array):
for elm_i, start_elm in zip(elm_is, aa_array):
    mask = np.ones(len_array, dtype=bool)
    target_elm = start_elm

    sum_diff = 0
    for count in xrange(len_array - 1):
        #c_time = time.time()
        mask[elm_i] = False
        masked_a_array = a_array[mask]
        relative_a_array = np.abs(masked_a_array - target_elm)
        target_elm_index = np.argmax(relative_a_array)
        target_elm = masked_a_array[target_elm_index]
        sum_diff += relative_a_array[target_elm_index]
        
        #print("mae:", time.time() - c_time)
        #c_time = time.time()
        count_ = -1
        for mask_i, elm in enumerate(mask):
            if elm:
                count_ += 1
                if count_ == target_elm_index:
                    elm_i = mask_i
                    break
        #print("ato:", time.time() - c_time)
    
    sum_diffs.append(sum_diff)

print max(sum_diffs)
#print(time.time() - s_time)

Fixed submission:
import numpy as np
import copy

N = int(raw_input().replace("\n", ""))

a_array = np.asarray(sorted([int(raw_input().replace("\n", "")) for i in xrange(N)]))

len_array = len(a_array)

coffs = np.ones(len(a_array), dtype=bool) * 2

if len_array % 2 == 0:
    coffs = [-2] * ((len_array - 1) / 2) + [-1] + [1] + [2] * ((len_array -1) / 2)
    out = np.dot(a_array, coffs)
else:
    coffs1 = [-2] * ((len_array-3) / 2) + [-1] * 2 + [2] * ((len_array-1) / 2)
    coffs2 = [-2] * ((len_array-1) / 2) + [1] * 2 + [2] * ((len_array-3) / 2)
    out1 = np.dot(a_array, coffs1)
    out2 = np.dot(a_array, coffs2)
    out = max(out1, out2)

print out

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
import copy

N = int(raw_input().replace("\n", ""))

a_array = np.asarray([int(raw_input().replace("\n", "")) for i in xrange(N)])
len_array = a_array.shape[0]

sum_diffs = []
for elm_i, start_elm in enumerate(a_array):
    mask = np.ones(len_array, dtype=bool)
    target_elm = start_elm
    #mask[elm_i] = False

    sum_diff = 0
    #while True:
    for count in xrange(len_array - 1):
        #a_list.remove(target_elm)
        mask[elm_i] = False
        a_list = a_array[mask]
        #print(a_array, mask, a_list, count)
        #a_array = np.abs(np.asarray(a_list) - target_elm)
        tmp = np.abs(a_list - target_elm)
        #target_elm_index = np.argmax(a_array)
        target_elm_index = np.argmax(tmp)
        target_elm = a_list[target_elm_index]
        sum_diff += tmp[target_elm_index]
        #print("sum_diff:", sum_diff)
        
        count_ = -1
        for mask_i, elm in enumerate(mask):
            if elm:
                count_ += 1
                if count_ == target_elm_index:
                    elm_i = mask_i
                    break
        #print target_elm_index, elm_i
    
    sum_diffs.append(sum_diff)

#print sum_diffs
print max(sum_diffs)

Fixed submission:
import numpy as np
import copy

N = int(raw_input().replace("\n", ""))

a_array = np.asarray(sorted([int(raw_input().replace("\n", "")) for i in xrange(N)]))

len_array = len(a_array)

coffs = np.ones(len(a_array), dtype=bool) * 2

if len_array % 2 == 0:
    coffs = [-2] * ((len_array - 1) / 2) + [-1] + [1] + [2] * ((len_array -1) / 2)
    out = np.dot(a_array, coffs)
else:
    coffs1 = [-2] * ((len_array-3) / 2) + [-1] * 2 + [2] * ((len_array-1) / 2)
    coffs2 = [-2] * ((len_array-1) / 2) + [1] * 2 + [2] * ((len_array-3) / 2)
    out1 = np.dot(a_array, coffs1)
    out2 = np.dot(a_array, coffs2)
    out = max(out1, out2)

print out

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
import copy

N = int(raw_input().replace("\n", ""))

a_list = []

for i in xrange(N):
    a = int(raw_input().replace("\n", ""))
    a_list.append(a)

input_list = a_list

a_array = np.asarray(a_list)
sum_diffs = []
for start_elm in input_list:
    a_list = copy.deepcopy(input_list)
    target_elm = start_elm
    
    sum_diff = 0
    while len(a_list) >= 1:
        a_list.remove(target_elm)
        if len(a_list) >= 1:
            a_array = np.abs(np.asarray(a_list) - target_elm)
            target_elm_index = np.argmax(a_array)
            target_elm = a_list[target_elm_index]
            sum_diff += a_array[target_elm_index]
        else:
            #sum_diff += np.abs(a_list[0] - target_elm)
            break
    
    sum_diffs.append(sum_diff)

print max(sum_diffs)

Fixed submission:
import numpy as np
import copy

N = int(raw_input().replace("\n", ""))

a_array = np.asarray(sorted([int(raw_input().replace("\n", "")) for i in xrange(N)]))

len_array = len(a_array)

coffs = np.ones(len(a_array), dtype=bool) * 2

if len_array % 2 == 0:
    coffs = [-2] * ((len_array - 1) / 2) + [-1] + [1] + [2] * ((len_array -1) / 2)
    out = np.dot(a_array, coffs)
else:
    coffs1 = [-2] * ((len_array-3) / 2) + [-1] * 2 + [2] * ((len_array-1) / 2)
    coffs2 = [-2] * ((len_array-1) / 2) + [1] * 2 + [2] * ((len_array-3) / 2)
    out1 = np.dot(a_array, coffs1)
    out2 = np.dot(a_array, coffs2)
    out = max(out1, out2)

print out