Buggy python submission (verdict: Runtime Error):
n=int(input())
#正答が出るプログラムではないです
base = [(-2)** i for i in range(32)]
num = 0
for i0 in range(2):
  num += base[0]*i0
  for i1 in range(2):
    num += base[1]*i1
    for i2 in range(2):
      num += base[2]*i2
      for i3 in range(2):
        num += base[3]*i3
        for i4 in range(2):
          num += base[4]*i4
          for i5 in range(2):
            num += base[5]*i5
            for i6 in range(2):
              num += base[6]*i6
              for i7 in range(2):
                num += base[7]*i7
                for i8 in range(2):
                  num += base[8]*i8
                  for i9 in range(2):
                    num += base[9]*i9
                    for i10 in range(2):
                      num += base[10]*i10
                      for i11 in range(2):
                        num += base[11]*i11
                        for i12 in range(2):
                          num += base[12]*i12
                          for i13 in range(2):
                            num += base[13]*i13
                            for i14 in range(2):
                              num += base[14]*i14
                              for i15 in range(2):
                                num += base[15]*i15
                                for i16 in range(2):
                                  num += base[16]*i16
                                  for i17 in range(2):
                                    num += base[17]*i17
                                    for i18 in range(2):
                                      num += base[18]*i18
                                      for i19 in range(2):
                                        num += base[19]*i19
                                        for i20 in range(2):
                                          num += base[20]*i20
                                          for i21 in range(2):
                                            num += base[21]*i21
                                            for i22 in range(2):
                                              num += base[22]*i22
                                              for i23 in range(2):
                                                num += base[23]*i23
                                                for i24 in range(2):
                                                  num += base[24]*i24
                                                  for i25 in range(2):
                                                    num += base[25]*i25
                                                    for i26 in range(2):
                                                      num += base[26]*i26
                                                      for i27 in range(2):
                                                        num += base[27]*i27
                                                        for i28 in range(2):
                                                          num += base[28]*i28
                                                          for i29 in range(2):
                                                            num += base[29]*i29
                                                            for i30 in range(2):
                                                              num += base[30]*i30
                                                              for i31 in range(2):
                                                                num += base[31]*i31
                                                                if num == n: 
                                                                  ans = str(i0)+str(i1)+str(i2)+str(i3)+str(i4)+str(i5)+str(i6)+str(i7)+str(i8)+str(i9)+str(i10)+str(i11)+str(i12)+str(i13)+str(i14)+str(i15)+str(i16)+str(i17)+str(i18)+str(i19)+str(i20)+str(i21)+str(i22)+str(i23)+str(i24)+str(i25)+str(i26)+str(i27)+str(i28)+str(i29)+str(i30)+str(i31)

print(ans)
                                                                  

Fixed submission:
#import sys
#input = sys.stdin.readline
#template input
import bisect

def IT():
    return int(input())
def IL():
    return [int(_) for _ in input().split()]
def SL():
    return [int(_) for _ in input().split()]
def ILS(n):
    return [int(input()) for _ in range(n)]
def SLS(n):
    return [input() for _ in range(n)]
def ILSS(n):
    return [[int(_) for _ in input().split()] for j in range(n)]

#template technique
def bit_full_search(ss):
    n = len(ss)
    for i in range(1 << n):
        s = ""
        for j in range(n + 1):
            if ((1 & i >> j) == 1):
                s += ss[j]
        print(s)

def bit_full_search2(A):
    #https://blog.rossywhite.com/2018/08/06/bit-search/
    value = []
    for i in range(1 << len(A)):
        output = []

        for j in range(len(A)):
            if ((i >> j) & 1) == 1:
                #output.append(A[j])
                output.append(A[j])
        value.append([format(i, 'b').zfill(16), sum(output)])
    return value


"""ここからメインコード"""
def main():
    n = IT()
    #それぞれ半分全列挙
    list1 = [(-2) **  i for i in range(16)]
    list2 = [(-2) ** (i + 16) for i in range(16)]

    list1 = bit_full_search2(list1)
    list1.sort(key=lambda x:x[1])
    list1_bin = [list1[i][0] for i in range(len(list1))]
    list1_val = [list1[i][1] for i in range(len(list1))]

    list2 = bit_full_search2(list2)
    list2.sort(key=lambda x:x[1])
    list2_bin = [list2[i][0] for i in range(len(list2))]
    list2_val = [list2[i][1] for i in range(len(list2))]
    ans = 0
    for i in range(len(list1_val)):
        j = bisect.bisect_left(list2_val, n - list1_val[i])
        if j < len(list2_val):
            if list1_val[i] + list2_val[j] == n:
                ans = list2_bin[j] +list1_bin[i]
                break
    print(int(ans))
main()

Buggy python submission (verdict: Time Limit Exceeded):
import random
import bisect
import math

option = 0     # 0:PSO 1:CFA 2:CFArank
max_or_min = 0 # 0:minimize 1:maxmize

iter=1

N = 100 #粒子の数
T = 1550 #世代数(ループの回数)
maximum=1
minimum=0

dimension, limit = 32, float("inf")

pi = [0 for i in range(dimension)]
ci = [0 for i in range(dimension)]
       
value = int(input())

#print(pi)
#print(ci)
#print(tot)


#--------粒　子　群　最　適　化------------------------------

#評価関数
def criterion(x):
    
    z = abs (sum([(-2)** i * x[i] for i in range(dimension)]) - value)
    return z

#粒子の位置の更新を行う関数
def update_position(x, v, x_min, x_max):
#    new_x = [x_min[i] if x[i]+ v[i] < x_min[i] else x_max[i] if x[i]+ v[i] > x_max[i] else x[i]+ v[i] for i in range(dimension)]
    new_x = [1 if random.uniform(0, 1)< 1/(1+math.e**(-v[i])) else 0 for i in range(dimension)]
    return new_x

#粒子の速度の更新を行う関数
def update_velocity(x, v, p, g, w, ro_max=1.0, c1=2.00, c2=0.75):
    #パラメーターroはランダムに与える
    phi=c1+c2
    K=2/abs(2-phi-(phi*phi-4*phi)**0.5)
    
    #粒子速度の更新を行う
    if option!=0:
        new_v = [K * ( w * v[i] + c1 * random.uniform(0, ro_max) * (p[i] - x[i]) + c2 * random.uniform(0, ro_max) * (g[i] - x[i]) ) for i in range(dimension)]
    else:
        new_v = [w * v[i] + c1 * random.uniform(0, ro_max) * (p[i] - x[i]) + c2 * random.uniform(0, ro_max) * (g[i] - x[i]) for i in range(dimension)]

    return new_v

def main():
    w = 1.0
    w_best, w_worst = 1.25, 0.25
    x_min = [minimum for i in range(dimension)]
    x_max = [maximum for i in range(dimension)]
    
    #粒子位置, 速度, パーソナルベスト, グローバルベストの初期化を行う
    ps = [[random.randint(x_min[j], x_max[j]) for j in range(dimension)] for i in range(N)]
    vs = [[0.0 for j in range(dimension)] for i in range(N)]

    personal_best_positions = ps[:] 
    personal_best_scores = [criterion(p) for p in ps]

    if max_or_min == 1:
        best_particle = personal_best_scores.index(max(personal_best_scores))
    elif max_or_min == 0:
        best_particle = personal_best_scores.index(min(personal_best_scores))
    global_best_position = personal_best_positions[best_particle][:]

    for t in range(T):
        for n in range(N):
            x = ps[n][:]
            v = vs[n][:]
            p = personal_best_positions[n][:]

            if option>=2:
                best_list = sorted(personal_best_positions)
                mu = bisect.bisect_left( best_list, p ) + 1
                w = w_best - mu * (w_best - w_worst) / (N - 1)


            #粒子の位置の更新を行う
            new_x = update_position(x, v, x_min, x_max)
            ps[n] = new_x[:]

            #粒子の速度の更新を行う
            new_v = update_velocity(new_x, v, p, global_best_position, w)
            vs[n] = new_v[:]

            #評価値を求め, パーソナルベストの更新を行う
            score = criterion(new_x)

            if max_or_min == 1:
                if score > personal_best_scores[n]:
                    personal_best_scores[n] = score
                    personal_best_positions[n] = new_x[:]
            elif max_or_min == 0:
                if score < personal_best_scores[n]:
                    personal_best_scores[n] = score
                    personal_best_positions[n] = new_x[:]

        #グローバルベストの更新を行う
        if max_or_min == 1:
            best_particle = personal_best_scores.index(max(personal_best_scores))
            global_best_position = personal_best_positions[best_particle][:]

        elif max_or_min == 0:
            best_particle = personal_best_scores.index(min(personal_best_scores))
            global_best_position = personal_best_positions[best_particle][:]
                     
    #最適解
    if max_or_min == 1:
        return max(personal_best_scores)
    elif max_or_min == 0:
        return min(personal_best_scores), global_best_position

#--------------------------------------------------------------
    
if max_or_min == 1:
    best=-float("inf")
    for i in range(iter):
        best=max(best, main())

elif max_or_min == 0:
    best=float("inf")
    for i in range(iter):
        best, answer =  main()

#print(best, answer)
flag = 0
s = ""
for i in range(len(answer)):
  if answer[len(answer)-1-i] ==1:
    flag = 1
  if flag ==1:
    s+=str(answer[len(answer)-1-i])
    
if value ==0:
  print(0)
else:
  print(s)



Fixed submission:
#import sys
#input = sys.stdin.readline
#template input
import bisect

def IT():
    return int(input())
def IL():
    return [int(_) for _ in input().split()]
def SL():
    return [int(_) for _ in input().split()]
def ILS(n):
    return [int(input()) for _ in range(n)]
def SLS(n):
    return [input() for _ in range(n)]
def ILSS(n):
    return [[int(_) for _ in input().split()] for j in range(n)]

#template technique
def bit_full_search(ss):
    n = len(ss)
    for i in range(1 << n):
        s = ""
        for j in range(n + 1):
            if ((1 & i >> j) == 1):
                s += ss[j]
        print(s)

def bit_full_search2(A):
    #https://blog.rossywhite.com/2018/08/06/bit-search/
    value = []
    for i in range(1 << len(A)):
        output = []

        for j in range(len(A)):
            if ((i >> j) & 1) == 1:
                #output.append(A[j])
                output.append(A[j])
        value.append([format(i, 'b').zfill(16), sum(output)])
    return value


"""ここからメインコード"""
def main():
    n = IT()
    #それぞれ半分全列挙
    list1 = [(-2) **  i for i in range(16)]
    list2 = [(-2) ** (i + 16) for i in range(16)]

    list1 = bit_full_search2(list1)
    list1.sort(key=lambda x:x[1])
    list1_bin = [list1[i][0] for i in range(len(list1))]
    list1_val = [list1[i][1] for i in range(len(list1))]

    list2 = bit_full_search2(list2)
    list2.sort(key=lambda x:x[1])
    list2_bin = [list2[i][0] for i in range(len(list2))]
    list2_val = [list2[i][1] for i in range(len(list2))]
    ans = 0
    for i in range(len(list1_val)):
        j = bisect.bisect_left(list2_val, n - list1_val[i])
        if j < len(list2_val):
            if list1_val[i] + list2_val[j] == n:
                ans = list2_bin[j] +list1_bin[i]
                break
    print(int(ans))
main()