Harryxun/sft_time huggingface dataset:
### BUGGY CODE ###

import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools

sys.setrecursionlimit(10**7)
inf = 10**20
eps = 1.0 / 10**10
mod = 10**9+7
dd = [(-1,0),(0,1),(1,0),(0,-1)]
ddn = [(-1,0),(-1,1),(0,1),(1,1),(1,0),(1,-1),(0,-1),(-1,-1)]

def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x)-1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def F(): return float(sys.stdin.readline())
def S(): return input()
def pf(s): return print(s, flush=True)


def main():
    rr = []
    M = 256

    def f(m, n):
        cs = [I() for _ in range(m)]
        xs = [I() for _ in range(n)]
        d = [inf] * M
        d[128] = 0
        for i in range(n):
            x = xs[i]
            nd = [inf] * M
            for k in range(M):
                v = d[k]
                for j in range(m):
                    c = cs[j]
                    nk = max(min(k+c,255),0)
                    if nd[nk] > v + pow(x-nk, 2):
                        nd[nk] = v + pow(x-nk, 2)
            d = nd
        return min(d)

    while True:
        n,m = LI()
        if m == 0 and n == 0:
            break
        rr.append(f(m,n))

    return '\n'.join(map(str,rr))




print(main())



### FIXED CODE ###

import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools

sys.setrecursionlimit(10**7)
inf = 10**20
eps = 1.0 / 10**10
mod = 10**9+7
dd = [(-1,0),(0,1),(1,0),(0,-1)]
ddn = [(-1,0),(-1,1),(0,1),(1,1),(1,0),(1,-1),(0,-1),(-1,-1)]

def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x)-1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def F(): return float(sys.stdin.readline())
def S(): return input()
def pf(s): return print(s, flush=True)


def main():
    rr = []
    M = 256
    sq = [i**2 for i in range(M)]
    nkss = [[sq[abs(x-nk)] for nk in range(M)] for x in range(M)]
    ML = list(range(M))

    def f(m, n):
        cs = [I() for _ in range(m)]
        xs = [I() for _ in range(n)]
        ml = list(range(m))
        d = [inf] * M
        nd = [inf] * M
        d[128] = 0
        ckl = list(map(lambda x: (max(min(x[0]+x[1], 255), 0), x[1]), (itertools.product(cs, ML))))
        for i in range(n):
            nd = [inf] * M
            for nk,k in ckl:
                if nd[nk] > d[k]:
                    nd[nk] = d[k]
            d = [nn + kk for nn,kk in zip(nd, nkss[xs[i]])]
        return min(d)

    while True:
        n,m = LI()
        if m == 0 and n == 0:
            break
        rr.append(f(m,n))

    return '\n'.join(map(str,rr))




print(main())
### BUGGY CODE ###

H, W, M = map(int, input().split())

arr = []
for _ in range(M):
    h, w = map(int, input().split())
    arr.append((h, w))

ans = 0

for i in range(1, H + 1):
    for j in range(1, W + 1):
        ans = max(ans, sum([x == i or y == j for (x, y) in arr]))

print(ans)

### FIXED CODE ###

H, W, M = map(int, input().split())

h = [0] * H
w = [0] * W
boms = set()

for _ in range(M):
    x, y = map(int, input().split())
    h[x - 1] += 1
    w[y - 1] += 1
    boms.add((x, y))

h_max = max(h)
w_max = max(w)

h_idx = [x + 1 for x, y in enumerate(h) if y == h_max]
w_idx = [x + 1 for x, y in enumerate(w) if y == w_max]

minus = -1
for x in h_idx:
    for y in w_idx:
        if not (x, y) in boms:
            minus = 0
            break

print(h_max + w_max + minus)
### BUGGY CODE ###

import heapq
N = int(input())
A = list(map(int,input().split()))
B = list(map(int,input().split()))

if any(a>b for a,b in zip(A,B)):
    print(-1)
    exit()

def pb(i):
    return i-1 if i-1 >= 0 else N-1
def nx(i):
    return i+1 if i+1 < N else 0

hq = []
for i,(a,b) in enumerate(zip(A,B)):
    if a <= b - B[pb(i)] - B[nx(i)]:
        hq.append((-b,i))
heapq.heapify(hq)

ans = 0
while hq:
    _,i = heapq.heappop(hq)
    if B[i] == A[i]: continue
    l = B[pb(i)]
    r = B[nx(i)]
    if B[i]-l-r < A[i]: continue
    k = (B[i]-A[i]) // (l+r)
    ans += k
    B[i] -= k*(l+r)
    if A[i] <= B[i] - l - r:
        heapq.heappush(hq, (-B[i],i))
    ll = B[pb(pb(i))]
    rr = B[nx(nx(i))]
    if A[nx(i)] <= r - B[i] - rr:
        heapq.heappush(hq, (-r,nx(i)))
    if A[pb(i)] <= l - B[i] - ll:
        heapq.heappush(hq, (-l,pb(i)))

if all(a==b for a,b in zip(A,B)):
    print(ans)
else:
    print(-1)

### FIXED CODE ###

import heapq
N = int(input())
A = list(map(int,input().split()))
B = list(map(int,input().split()))

if any(a>b for a,b in zip(A,B)):
    print(-1)
    exit()

def pb(i):
    return i-1 if i-1 >= 0 else N-1
def nx(i):
    return i+1 if i+1 < N else 0

hq = []
for i,(a,b) in enumerate(zip(A,B)):
    if a <= b - B[pb(i)] - B[nx(i)]:
        hq.append((-b,i))
heapq.heapify(hq)

ans = 0
while hq:
    _,i = heapq.heappop(hq)
    if B[i] == A[i]: continue
    l = B[pb(i)]
    r = B[nx(i)]
    if B[i]-l-r < A[i]: continue
    k = (B[i]-A[i]) // (l+r)
    ans += k
    B[i] -= k*(l+r)
    ll = B[pb(pb(i))]
    rr = B[nx(nx(i))]
    if A[nx(i)] <= r - B[i] - rr:
        heapq.heappush(hq, (-r,nx(i)))
    if A[pb(i)] <= l - B[i] - ll:
        heapq.heappush(hq, (-l,pb(i)))

if all(a==b for a,b in zip(A,B)):
    print(ans)
else:
    print(-1)
### BUGGY CODE ###

k = int(input())
c = 0
x = 0
sx = 0
while c < k:
  x+=1
  sx = str(x)
  c+=1
  for i in range(len(sx)-1):
    if abs(int(sx[len(sx)-1 -i]) - int(sx[len(sx)-2-i])) > 1:
     c-=1
     break
print(x)

### FIXED CODE ###

kk = int(input())
if kk < 10:
    print(kk)
    exit()
 
 
dp = [[0] * 10 for _ in range(15)]
dp[0] = [1] * 10
for i in range(14):
    #dp[i+1][0] += sum(dp[i])
    for j in range(10):
        for k in range(-1, 2):
            if not (0 <= j + k < 10):
                continue
            dp[i + 1][j + k] += dp[i][j]
 
a = 0
for i in range(15):
    if a+sum(dp[i][1:]) >= kk:
        break
    a += sum(dp[i][1:])
 
ii = i
 
 
for j in range(1, 10):
    if a + dp[i][j] >= kk:
        kk -= a
        break
    a += dp[i][j]
 
ans = j
for i in reversed(range(ii)):
    a = 0
    for k in range(-1, 2):
        if not (0 <= j + k < 10):
            continue
        if a + dp[i][j + k] >= kk:
            kk -= a
            j = j + k
            ans = ans * 10 + j
 
            break
        a += dp[i][j + k]
 
 
print(ans)
### BUGGY CODE ###

#-*-coding:utf-8-*-

def main():
    s = input()
    K = int(input())

    dict_list = []

    abc_list = 'abcdefghijklmnopqrstuvwxyz'

    for abc in abc_list:
        j = 1
        dict_temp = []
        while True:
            for i in range(len(s)):
                if  i + j <= len(s) and s[i] == abc:
                    dict_temp.append(s[i:i+j])
            j += 1
            if j > len(s):
                break
        dict_temp = list(set(dict_temp))
        dict_temp.sort()
        dict_list += dict_temp
        if len(dict_list) >= K:
            print(dict_list[K-1])
            break
    #print(dict_list)
            

if __name__ == '__main__':
    main()

### FIXED CODE ###

#-*-coding:utf-8-*-

def main():
    s = input()
    K = int(input())

    a = set()

    for i in range(len(s)):
        for j in range(K):
            a.add(s[i:i+j+1])
            if i + j > len(s):
                break
    a_list = list(a)
    a_list.sort()
    print(a_list[K-1])
            

if __name__ == '__main__':
    main()
### BUGGY CODE ###

import math

n = int(input())

ans =0

for i in range(1,n+1):
    for j in range(1,n+1):
        for k in range(1,n+1):
            ans += math.gcd(math.gcd(i,j),k)

print(ans)

### FIXED CODE ###

from math import gcd

n = int(input())

ans =0

for i in range(1,n+1):
    for j in range(1,n+1):
        for k in range(1,n+1):
            g1 = gcd(i,j)
            ans += gcd(g1,k)

print(ans)
### BUGGY CODE ###

N = int(input())
A = [int(i) for i in input().split()] 
C = [0] * (N)
S = ""
for i in range(N):
	C[A[i]-1]=i+1

for i in range(N):
	if i == 0:
		S = str(C[i])
	else:
		S = S+" "+str(C[i])
print(S)

### FIXED CODE ###

N = int(input())
A = [int(i) for i in input().split()] 
C = [0] * (N)

for i in range(N):
	C[A[i]-1]=i+1

print(' '.join(map(str,C)))
### BUGGY CODE ###

import collections
n = int(input())
arr = [input() for _ in range(n)]
count = 0
for i in range(n-1):
  c1 = collections.Counter(arr[i])
  for j in range(i+1,n):
    c2 = collections.Counter(arr[j])
    if c1 == c2:
      count += 1
print(count)

### FIXED CODE ###

n = int(input())
arr = []
for i in range(n):
  arr.append("".join(sorted(input())))
arr1 = sorted(arr)
count = 0
b1 = arr1[0]
l = []
for i in range(n-1):
  b2 = arr1[i+1]
  if b2 == b1:
    count += 1
    if i == n-2:
      l.append(count)
  else:
    l.append(count)
    count = 0
  b1 = b2
sums = 0
for j in l:
  for k in range(1,j+1):
    sums += k
print(sums)
### BUGGY CODE ###

n = int(input())
p = list(map(int, input().split()))
count = 0

for i in range(len(p)):
    target = p[i]
    flag = True
    for j in range(i):
        if p[i] > p[j]:
            flag = False
            break
    if flag:
        count += 1
        
print(count)

### FIXED CODE ###

n = int(input())
p = list(map(int, input().split()))
ans = 0
min = p[0]

for i in range(len(p)):
    if p[i]<=min:
        min = p[i]
        ans += 1

print(ans)
### BUGGY CODE ###

import re
import sys

from collections import *
ddict=defaultdict

from functools import lru_cache
cache=lru_cache(None)

from heapq import *
from itertools import *
from statistics import *

from string import (
    ascii_letters as letters,
    ascii_lowercase as ucletters,
    ascii_uppercase as lcletters,
    digits
)
alnum=letters+digits
xdigits='01234567890abcdefabcdef'

from pprint import pprint

inf=float('inf')
ansmod=1000000007
int8_min=-128
int16_min=-32768
int32_min=-2147483648
int64_min=-9223372036854775808
int8_max=127
int16_max=32767
int32_max=2147483647
int64_max=9223372036854775807
uint8_max=255
uint16_max=65535
uint32_max=4294967295
uint64_max=18446744073709551615

rfs=lambda:rl().split()
ri=lambda:int(rl())
ris=lambda:list(map(int,rfs()))
rl=lambda:next(sys.stdin)
rrs=lambda:list(map(str.strip,sys.stdin))
rs=lambda:rl().strip()
rt=lambda:sys.stdin.read()
rg=lambda:list(map(list,rrs()))
rig=lambda:[[*map(int,x.split())] for x in rls()]

def nbs4(i,j):
    return [
                (i-1,j),
        (i,j-1),        (i,j+1),
                (i+1,j),
    ]

def nbs8(i,j):
    return [
        (i-1,j-1),(i-1,j),(i-1,j+1),
        (  i,j-1),        (  i,j+1),
        (i+1,j-1),(i+1,j),(i+1,j+1),
    ]

inb=lambda i,j,m,n:0<=i<m and 0<=j<n

sys.setrecursionlimit(int32_max)

################################################

H,W=ris()
S=rg()

xs=[[0]*W for _ in range(H)]
for i in range(H):
    j=0
    while j<W:
        ct=0
        k=j
        while k<W and S[i][k]!='#':
            ct+=1
            k+=1
        while j<k:
            xs[i][j]=ct
            j+=1
        j+=1

ans=0
ys=[[0]*W for _ in range(H)]
for j in range(W):
    i=0
    while i<H:
        ct=0
        k=i
        while k<H and S[k][j]!='#':
            ct+=1
            k+=1
        while i<k:
            ans=max(ans,xs[i][j]+ct-1)
            i+=1
        i+=1

#pprint(xs,width=60)
#print()
#pprint(ys,width=60)

print(ans)


### FIXED CODE ###

import sys

H,W=map(int,next(sys.stdin).split())

xs=[[0]*(W+2) for _ in range(H+2)]
ys=[[0]*(W+2) for _ in range(H+2)]
for i in range(1,H+1):
    row=next(sys.stdin)
    for j in range(1,W+1):
        if row[j-1]!='.': continue
        xs[i][j]=1+xs[i][j-1]
        ys[i][j]=1+ys[i-1][j]

ans=0
for i in range(H,0,-1):
    for j in range(W,0,-1):
        if xs[i][j]==0: continue
        x=xs[i][j]=max(xs[i][j],xs[i][j+1])
        y=ys[i][j]=max(ys[i][j],ys[i+1][j])
        ans=max(ans,x+y-1)

print(ans)
### BUGGY CODE ###

N = input()
As = list(map(int, input().split()))

result = 0
for i in range(len(As)-1):
    result+=As[i]*sum(As[i+1:])
print(result%(1*10**9+7))


### FIXED CODE ###

N = int(input())
As = list(map(int, input().split()))

result = 0
before_sum = sum(As)
for i in range(N-1):
    before_sum-=As[i]
    result+=As[i]*(before_sum)
print(result%(1*10**9+7))
### BUGGY CODE ###

import sys
from math import factorial
n, m, k = map(int, input().split())
prime_mod = 998244353

def prime_cycle_division(a, b):
  inverted = pow(b, prime_mod-2, prime_mod)
  return (a*inverted)%prime_mod

def mod_comb(places, objects):
  numerator = 1
  denominator = 1
  for i in range(objects):
    numerator = (numerator*(places-i))%prime_mod
    denominator = (denominator*(i+1))%prime_mod
  ans = prime_cycle_division(numerator, denominator)
  return ans

def combos(j):
  ans = (m*mod_comb(n-1, j))%prime_mod
  ans = (ans*pow(m-1, n-1-j, prime_mod))%prime_mod
  return ans

total = 0
for j in range(k+1):
  total = (total + combos(j))%prime_mod
print(total)

### FIXED CODE ###

import sys
n, m, k = map(int, input().split())
prime_mod = 998244353

def prime_cycle_division(a, b):
  inverted = pow(b, prime_mod-2, prime_mod)
  return (a*inverted)%prime_mod

def gen_mod_combs(places):
  k = 0
  x = 1
  while True:
    yield x
    factor = prime_cycle_division(places-k, k+1)
    x = (x*factor)%prime_mod
    k += 1

def combos(j):
  ans = (m*next(gen))%prime_mod
  ans = (ans*pow(m-1, n-1-j, prime_mod))%prime_mod
  return ans

total = 0
gen = gen_mod_combs(n-1)
for j in range(k+1):
  total = (total + combos(j))%prime_mod
print(total)
### BUGGY CODE ###

N,P=[int(s) for s in input().split()]
num=input()


ans=0
if P!=2 and P!=5:
  ls=[int(num[i:])%P for i in range(N)]
  count=[0 for _ in range(P)]
  for i in range(N):
    count[ls[i]]+=1
  for i in range(N):
    a=ls[i]
    if a==0:
      ans+=1
    count[a]-=1
    ans+=count[a]
else :
  for i in range(N):
    if int(num[i])%P==0:
      ans+=i+1
print(ans)


### FIXED CODE ###

N,P=[int(s) for s in input().split()]
S=list(input())
if P!=2 and P!=5:
  ls=[0 for _ in range(N)]
  mod=[0 for _ in range(P)]
  d=10
  ls[0]=int(S[-1])%P
  mod[ls[0]]+=1
  for i in range(1,N):
    ls[i]=(ls[i-1]+d*int(S[-1-i]))%P
    d=(d*10)%P
    mod[ls[i]]+=1
  #print(ls)
  #print(mod)  
  ans=mod[0]
  for i in range(N):
    m=ls[i]
    mod[ls[i]]-=1
    ans+=mod[ls[i]]
else:
  ans=0
  for i in range(N):
    if int(S[i])%P==0:
      ans+=i+1
print(ans)
### BUGGY CODE ###

def main():
    MOD = 10**9 + 7
    n = int(input())
    a = list(map(int, input().split()))
    ans = 0
    
    a_sum = []
    for i in range(n):
        a_sum.append(sum(a[i+1:n]))
    
    for i in range(n-1):
        ans += a[i] * a_sum[i]
        ans %= MOD
    print(ans)
        
        
if __name__ == '__main__':
    main()

### FIXED CODE ###

def main():
    MOD = 10**9 + 7
    n = int(input())
    a = list(map(int, input().split()))
    a_sum = sum(a)
    ans = 0
    
    for i in range(n):
        ans += a[i] * (a_sum - a[i])
    print(ans // 2 % MOD)
        
        
if __name__ == '__main__':
    main()
### BUGGY CODE ###

import math

def comb(n, r):
    if r == 0:
        return 1
    else:
        return math.factorial(n) // (math.factorial(r) * math.factorial(n - r))

n = int(input())
a = sorted(map(int, input().split()))
M = 0
for i in range(n // 2 + 1):
    c = comb(a[-1], a[i])
    if c > M:
        M = c
        ans = [a[-1], a[i]]
print(*ans)


### FIXED CODE ###

n = int(input())
a = sorted(map(int, input().split()))
m = a[-1]
for i in range(n - 1):
    c = abs(a[i] - a[-1] / 2)
    if c < m:
        m = c
        r = i
print(a[-1], a[r])
### BUGGY CODE ###

h,a,*m=open(0)
h,w,k,a,b,f,g=map(int,(h+a).split())
d=[I:=9**9]*h*w
a=~w+a*w+b
d[a]=1
q=[a]
for s in q:
 for y,x in(1,0),(-1,0),(0,1),(0,-1):
  for z in range(k):
   if(h>(i:=s//w+y*~z)>-1<(j:=s%w+x*~z)<w)-1or'.'<m[i][j]or d[(t:=i*w+j)]<=d[s]:break
   if d[t]==I:q+=t,;d[t]=d[s]+1
print(d[~w+f*w+g]%I-1)

### FIXED CODE ###

I=9**9
h,a,*m=open(0)
h,w,k,a,b,f,g=map(int,(h+a).split())
d=[I]*h*w
a=~w+a*w+b
d[a]=1
q=[a]
for s in q:
 for y,x in(1,0),(-1,0),(0,1),(0,-1):
  for z in range(k):
   i,j=s//w+y*~z,s%w+x*~z;t=i*w+j
   if(h>i>-1<j<w)-1or'.'<m[i][j]or d[t]<=d[s]:break
   if d[t]==I:q+=t,;d[t]=d[s]+1
print(d[~w+f*w+g]%I-1)
### BUGGY CODE ###

h,w=map(int,input().split())
s=[]
for _ in range(h):
    s.append(list(input()))
l=[[0 for x in range(w+2)] for y in range(h+2)]
r=[[0 for x in range(w+2)] for y in range(h+2)]
u=[[0 for x in range(w+2)] for y in range(h+2)]
d=[[0 for x in range(w+2)] for y in range(h+2)]
#l
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[i-1][j-1]==".":
            l[i][j]=l[i][j-1]+1
        else:
            l[i][j]=0
#r
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[i-1][w-(j-1)-1]==".":
            r[i][w+1-j]=r[i][w+1-j+1]+1
        else:
            r[i][w+1-j]=0
#u
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[i-1][j-1]==".":
            u[i][j]=u[i-1][j]+1
        else:
            u[i][j]=0
#d
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[h-(i-1)-1][j-1]==".":
            d[h+1-i][j]=d[h+1-i+1][j]+1
        else:
            d[h+1-i][j]=0
ans=0
for y in range(1,h+1):
    for x in range(1,w+1):
        sum=r[y][x]+l[y][x]+u[y][x]+d[y][x]-3
        if ans<sum:
            ans=sum
print(ans)


### FIXED CODE ###

h,w=map(int,input().split())
s=[]
for _ in range(h):
    s.append(list(input()))
l=[[0 for x in range(w+2)] for y in range(h+2)]
r=[[0 for x in range(w+2)] for y in range(h+2)]
u=[[0 for x in range(w+2)] for y in range(h+2)]
d=[[0 for x in range(w+2)] for y in range(h+2)]
#l
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[i-1][j-1]==".":
            l[i][j]=l[i][j-1]+1
        else:
            l[i][j]=0
#r
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[i-1][w-(j-1)-1]==".":
            r[i][w+1-j]=r[i][w+1-j+1]+1
        else:
            r[i][w+1-j]=0
#u
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[i-1][j-1]==".":
            u[i][j]=u[i-1][j]+1
        else:
            u[i][j]=0
#d
for i in range(1,h+1):
    for j in range(1,w+1):
        if s[h-(i-1)-1][j-1]==".":
            d[h+1-i][j]=d[h+1-i+1][j]+1
        else:
            d[h+1-i][j]=0
ans=0
for y in range(1,h+1):
    for x in range(1,w+1):
        sum=r[y][x]+l[y][x]+u[y][x]+d[y][x]-3
        if ans<sum:
            ans=sum
print(ans)
### BUGGY CODE ###

#!/usr/bin/env python3
S = input().strip()
T = input().strip()

for i in range(len(S)):
    S = S.translate(str.maketrans({S[i]: T[i], T[i]: S[i]}))

print('Yes' if S == T else 'No')

### FIXED CODE ###

S = input().strip()
T = input().strip()

s_dict = {}
for i in range(len(S)):
    if not S[i] in s_dict:
        s_dict[S[i]] = T[i]

    elif s_dict[S[i]] != T[i]:
        print('No')
        exit()

t_dict = {}
for i in range(len(T)):
    if not T[i] in t_dict:
        t_dict[T[i]] = S[i]

    elif t_dict[T[i]] != S[i]:
        print('No')
        exit()

print('Yes')
### BUGGY CODE ###

import heapq

n, m = map(int, input().split())
list_score = list(map(int, input().split()))
list_kard = [list(map(int, input().split(" "))) for i in range(m)]

sorted(list_kard, key=lambda x: x[1])
heapq.heapify(list_score)

for i in range(m):
    k = list_kard[i]
    for _ in range(k[0]):
        if list_score[0] < k[1]:
            heapq.heappop(list_score)
            heapq.heappush(list_score, k[1])
        else:
            break
print(sum(list_score))

### FIXED CODE ###

import heapq

n, m = map(int, input().split())
list_score = list(map(int, input().split()))
list_kard = [list(map(int, input().split(" "))) for i in range(m)]

list_kard.sort(key=lambda x: x[1], reverse=True)
heapq.heapify(list_score)

for i in range(m):
    k = list_kard[i]
    for _ in range(k[0]):
        if list_score[0] < k[1]:
            heapq.heappop(list_score)
            heapq.heappush(list_score, k[1])
        else:
            break

print(sum(list_score))
### BUGGY CODE ###

def resolve():
    n, l, t = map(int, input().split())
    lx, lw = [], []
    while True:
        try:
            x, w = map(int, input().split())
            lx.append(x*2)
            lw.append(w-1)
        except EOFError:
            break
    l *= 2
    t *= 2
    for i in range(t):
        for j in range(n):
            if lw[j] == 0:
                lx[j] = (lx[j]+1)%l
            else:
                lx[j] = (lx[j]-1)%l
        for j in range(n):
            for k in range(j+1, n):
                if lx[j] == lx[k]:
                    lw[j] = (lw[j]+1)%2
                    lw[k] = (lw[k]+1)%2
    for x in lx:
        print(x//2)
resolve()

### FIXED CODE ###

def resolve():
    n, l, t = map(int, input().split())
    lx, lw = [], []
    while True:
        try:
            x, w = map(int, input().split())
            lx.append(x)
            lw.append(w)
        except EOFError:
            break
    cnt = 0
    zero = 0
    x0 = lx[0]
    if lw[0] == 1:
        for i in range(1, n):
            if lw[i] == 2 and t * 2 >= lx[i] - lx[0]:
                cnt += (t * 2 - (lx[i] - lx[0])) // l + 1
        for i in range(n):
            if lw[i] == 1:
                lx[i] = (lx[i] + t) % l
            else:
                lx[i] = (lx[i] - t) % l
        slx = sorted(lx)
        for i in range(n):
            if (x0 + t) % l == slx[i]:
                zero = (i - cnt) % n
        for i in range(n):
            print(slx[(zero + i) % n])
    else:
        for i in range(1, n):
            if lw[i] == 1 and t * 2 >= l + lx[0] - lx[i]:
                cnt += (t * 2 - (l + lx[0] - lx[i])) // l + 1
        for i in range(n):
            if lw[i] == 1:
                lx[i] = (lx[i] + t) % l
            else:
                lx[i] = (lx[i] - t) % l
        slx = sorted(lx)
        for i in range(n-1, -1, -1):
            if (x0 - t) % l == slx[i]:
                zero = (i + cnt) % n
        for i in range(n):
            print(slx[(zero + i) % n])
resolve()
### BUGGY CODE ###

def main():
    from bisect import bisect_right as br
    n = int(input())
    a = sorted(list(map(int, input().split())))
    b = sorted(list(map(int, input().split())))
    m = n % 2
    xor = 0
    for i in b:
        xor ^= i

    ans = 0
    for loop in range(29):
        j = 2**loop
        k = (xor & j) // j
        temp = []
        for i in b:
            ii = (-i) % j
            if ii != 0:
                temp.append(ii)
        temp.sort()
        x = k*m % 2
        for i in a:
            k2 = m * (i & j) // j
            x += (k2 + br(temp, i % j)) % 2
        x %= 2
        ans += x*j
    print(ans)


main()

### FIXED CODE ###

def main():
    from bisect import bisect_right as br
    n = int(input())
    a = sorted(list(map(int, input().split())))
    b = sorted(list(map(int, input().split())), reverse=True)
    m = n % 2
    xor = 0
    for i in b:
        xor ^= i
    for i in range(n):
        b[i] = 2**28 - b[i]
    ans = 0
    for loop in range(28, -1, -1):
        j = pow(2, loop)
        k = (xor & j) // j
        temp = br(b, j-1)
        for i in range(temp, n):
            b[i] -= j
        b.sort()
        temp = br(a, j-1)
        for i in a[:temp]:
            k += (i & j) // j
        for i in range(temp, n):
            k += (a[i] & j) // j
            a[i] -= j
        x = (k+br(b, 0))*m % 2
        a.sort()
        l = 0
        for i in a:
            while l < n:
                if i >= b[l]:
                    l += 1
                else:
                    break
            x += l % 2
        ans += (x % 2)*j
    print(ans)


main()