Harryxun/stf_run huggingface dataset:
import math

n, k = [int(elem) for elem in input().split()]

res = 0.0
for i in range(1, n+1):
  if (k/i) == (k//i):
    if math.log2(k//i) == int(math.log2(k//i)):
      x = int(math.log2(k//i))
    else:
      x = int(math.log2(k//i)) + 1
  else:
     x = int(math.log2(k//i)) + 1
  res += (1/n) * (0.5 ** x)
print(res)

### FIXED CODE ###

import math

n, k = [int(elem) for elem in input().split()]

res = 0.0
for i in range(1, n+1):
  if not (k//i) == 0:
    if (k/i) == (k//i):
      if math.log2(k//i) == int(math.log2(k//i)):
        x = int(math.log2(k//i))
      else:
        x = int(math.log2(k//i)) + 1
    else:
      x = int(math.log2(k//i)) + 1
  else:
    x = 0
  res += (1/n) * (0.5 ** x)
print(res)
from heapq import heappop, heappush, heapify

T = int(input())

for _ in range(T):
    N = int(input())
    camel = [tuple(map(int, input().split())) for _ in range(N)]
    dif = [(camel[i][1] - camel[i][2], camel[i][0] - 1, i) for i in range(N)]
    pos = []
    neg = []
    for i in range(N):
        if dif[i][0] >= 0:
            pos.append((-dif[i][0], dif[i][1], dif[i][2]))
        else:
            neg.append(dif[i])

    p = len(pos)
    n = len(neg)

    pos.sort(key=lambda x: x[1], reverse=True)
    neg.sort(key=lambda x: x[1])

    heappos = []
    heapneg = []

    arr = [None for _ in range(N)]

    j = 0
    for i in range(p)[::-1]:
        while j != p and pos[j][1] >= i:
            heappush(heappos, pos[j])
            j += 1
        d, k, id = heappop(heappos)
        arr[i] = id

    j = 0
    for i in range(n):
        while j != n and neg[j][1] <= N - i - 1:
            heappush(heapneg, neg[j])
            j += 1
        d, k, id = heappop(heapneg)
        arr[N - 1 - i] = id

    res = 0

    for i in range(N):
        k, l, r = camel[arr[i]]
        if k <= i:
            res += r
        else:
            res += l

    print(res)

### FIXED CODE ###

from heapq import heappop, heappush, heapify
from collections import deque

T = int(input())

for _ in range(T):
    N = int(input())
    camel = [tuple(map(int, input().split())) for i in range(N)]

    pos = []
    neg = []

    for i in range(N):
        k, l, r = camel[i]
        if l - r >= 0:
            pos.append((r - l, k, i))
        else:
            neg.append((l - r, N - k, i))

    pos.sort(key=lambda x:x[1], reverse=True)
    p = len(pos)

    heappos = []
    respos = [None for i in range(N)]

    j = 0
    for i in range(N)[::-1]:
        while j < p and pos[j][1] == i + 1:
            heappush(heappos, pos[j])
            j += 1
        if heappos:
            d, k, id = heappop(heappos)
            respos[i] = id
    for i in range(N)[::-1]:
        if respos[i] is None and heappos:
            d, k, id = heappop(heappos)
            respos[i] = id


    neg.sort(key=lambda x:x[1], reverse=True)
    n = len(neg)

    heapneg = []
    resneg = [None for i in range(N)]

    j = 0
    for i in range(N)[::-1]:
        while j < n and neg[j][1] == i + 1:
            heappush(heapneg, neg[j])
            j += 1
        if heapneg:
            d, k, id = heappop(heapneg)
            resneg[i] = id
    while j < n:
        heappush(heapneg, neg[j])
        j += 1
    for i in range(N)[::-1]:
        if resneg[i] is None and heapneg:
            d, k, id = heappop(heapneg)
            resneg[i] = id

    respos = [respos[i] for i in range(N) if respos[i] is not None]
    resneg = [resneg[i] for i in range(N) if resneg[i] is not None]
    res = respos + resneg[::-1]

    ans = 0

    for i in range(N):
        k, l, r = camel[res[i]]
        if k >= i + 1:
            ans += l
        else:
            ans += r

    print(ans)
s = input()
t = input()

def z_algorithm(s):
    a = [0] * len(s)
    i = 1
    j = 0
    a[0] = len(s)
    while i < len(s):
        while i + j < len(s) and s[j] == s[i+j]:
            j += 1
        a[i] = j
        if j == 0:
            i += 1
            continue
        k = 1
        while i + k < len(s) and k + a[k] < j:
            a[i+k] = a[k]
            k += 1
        i += k
        j -= k
    return a

def solve(i, li):
    ans = 0
    while True:
        if i < 0 or len(li) <= i or visited[i]:
            break
        if li[i] < len(t):
            visited[i] = True
            break
        if li[i] >= len(t):
            visited[i] = True
            ans += 1
            i += len(t)
    return ans

#sを伸ばす
new_s = ""
while True:
    new_s += s
    if len(new_s) > len(t):
        s = new_s
        break
print(1)
exit()

s = s*3
li = z_algorithm(t + s)[len(t):]
visited = [False] * len(li)
ans1 = 0
for i in range(len(li)):
    ans1 = max(ans1, solve(i, li))

s += s
li = z_algorithm(t + s)[len(t):]
visited = [False] * len(li)
ans2 = 0
for i in range(len(li)):
    ans2 = max(ans2, solve(i, li))

if ans1 == ans2:
    print(ans1)
else:
    print(-1)
'''
print(ans1)

### FIXED CODE ###

s = input()
t = input()

def z_algorithm(s):
    a = [0] * len(s)
    i = 1
    j = 0
    a[0] = len(s)
    while i < len(s):
        while i + j < len(s) and s[j] == s[i+j]:
            j += 1
        a[i] = j
        if j == 0:
            i += 1
            continue
        k = 1
        while i + k < len(s) and k + a[k] < j:
            a[i+k] = a[k]
            k += 1
        i += k
        j -= k
    return a

def solve(i, li):
    ans = 0
    while True:
        if i < 0 or len(li) <= i or visited[i]:
            break
        if li[i] < len(t):
            visited[i] = True
            break
        if li[i] >= len(t):
            visited[i] = True
            ans += 1
            i += len(t)
    return ans

#sを伸ばす
new_s = s
while True:
    if len(new_s) > len(t):
        s = new_s
        break
    new_s += new_s

s = s*3
li = z_algorithm(t + s)[len(t):]
visited = [False] * len(li)
ans1 = 0
for i in range(len(li)):
    ans1 = max(ans1, solve(i, li))

s += s
li = z_algorithm(t + s)[len(t):]
visited = [False] * len(li)
ans2 = 0
for i in range(len(li)):
    ans2 = max(ans2, solve(i, li))

if ans1 == ans2:
    print(ans1)
else:
    print(-1)
import numpy as np
import scipy.sparse.csgraph as graph

N = int(input())
G = np.array([list(map(int, input().split())) for i in range(N)], dtype = 'int32')

G2 = graph.floyd_warshall(G, directed=False)

if np.any(G != G2):
    print(-1)
else:
    c = [2*10**9]*N
    d = np.diag(c)
    G += d
    ans = 0
    for i in range(N):
        for j in range(i+1, N):
            two = np.min(G[i]+G[j])
            if two != G[i,j]:
                ans += G[i,j]

print(ans)

### FIXED CODE ###

import numpy as np
import scipy.sparse.csgraph as graph

N = int(input())
G = np.array([list(map(int, input().split())) for i in range(N)])

G2 = graph.floyd_warshall(G, directed=False)

if np.any(G != G2):
    print(-1)
    exit()
else:
    c = [2*10**9]*N
    d = np.diag(c)
    G += d
    ans = 0
    for i in range(N):
        for j in range(i+1, N):
            two = np.min(G[i]+G[j])
            if two != G[i,j]:
                ans += G[i,j]

print(ans)
N = input()
if N[0]==N[1] and N[1]==N[2] and N[2]==N[3]:
  print('Yes')
elif N[1]==N[2] and N[2]==N[3] and N[3]==N[4]:
  print('Yes')
else:
  print('No')

### FIXED CODE ###

def a_good_integer(N):
    if N[0] == N[1] and N[1] == N[2]:
        return('Yes')
    elif N[1] == N[2] and N[2] == N[3]:
        return('Yes')
    else:
        return('No')
      
N = input()
print(a_good_integer(N))
import sys
input = sys.stdin.readline
n,q = map(int,input().split())
s = input().rstrip()
td = [list(input().rstrip().split()) for i in range(q)]
def judge(x,direction):
  if direction == "L":
    if x == n:
      return True
    if x == -1:
      return False
    jedge = lambda w: True if w>=0 else False
  else:
    if x == -1:
      return True
    if x == n:
      return False
    jedge = lambda w: True if w<n else False
  for i in range(q):
    if td[i][0] == s[x]:
      if td[i][1] == "R":
        x += 1
      else:
        x -= 1
    if jedge(x) == False:
      return False
  return True
l = -1
r = n
while l+1<r:
  x = (l+r)//2
  if judge(x,"L"):
    r = x
  else:
    l = x
ansl = r
l = -1
r = n
while l+1<r:
  x = (l+r)//2
  if judge(x,"R"):
    l = x
  else:
    r = x
ansr = l
print(max(0,ansr-ansl+1))


### FIXED CODE ###

import sys
input = sys.stdin.readline
n,q = map(int,input().split())
s = input().rstrip()
td = [list(input().rstrip().split()) for i in range(q)]
def judge(x,direction):
  if direction == "L":
    if x == n:
      return True
    if x == -1:
      return False
    jpos = lambda w: True if w>=0 else False
  else:
    if x == -1:
      return True
    if x == n:
      return False
    jpos = lambda w: True if w<n else False
  for i in range(q):
    if td[i][0] == s[x]:
      if td[i][1] == "R":
        x += 1
      else:
        x -= 1
    if jpos(x) == False:
      return False
    if not 0<=x<n:
      return True
  return True
l = -1
r = n
while l+1<r:
  m = (l+r)//2
  if judge(m,"L"):
    r = m
  else:
    l = m
ansl = r
l = -1
r = n
while l+1<r:
  m = (l+r)//2
  if judge(m,"R"):
    l = m
  else:
    r = m
ansr = l
print(max(0,ansr-ansl+1))
import fractions
from functools import reduce
N = int(input())
A = list(map(int,input().split()))
ans = 0
A = sorted(A)
def gcd_list(numbers):
    return reduce(fractions.gcd, numbers)
ans = 0
ans_ = 0
if N == 2:
  print(max(A))
elif N == 3:
  tmp = [A[0],A[1],A[N-1]]
  for i in range(len(tmp)):
    tmp_ = tmp[:]
    tmp_.pop(i)
    ans_ = gcd_list(tmp_)
    if ans < ans_:
      ans = ans_
  print(ans)
else:
  tmp = [A[0],A[1],A[N-2],A[N-1]]
  if len(list(set(A))) == 2:
    print(max(A))
  else:
    count = 0
    ans = gcd_list(tmp)
    for j in range(N):
      if A[j]%ans != 0:
        count+=1
    if count = 1:
      print(ans)
    else:
      for i in range(len(tmp)):
        tmp_ = tmp[:]
        tmp_.pop(i)
        ans_ = gcd_list(tmp_)
        if ans < ans_:
          ans = ans_
      print(ans)

### FIXED CODE ###

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

def gcd(a,b):
  if b == 0:
    return a
  else:
    return gcd(b,a%b)

ans = 0
L = [0]*(N+1)
for i in range(N):
  L[i+1] = gcd(L[i],A[i])

R = [0]*(N+1)
for i in range(N-1,-1,-1):
  R[i] = gcd(R[i+1],A[i])
  
for i in range(N):
  M = gcd(L[i],R[i+1])
  if ans < M:
    ans = M
    
print(ans)
N, M = map(int, input().split())

l = []

A, B = map(int, input().split())
l.append((A, B))
for i in range(M-1):
    A, B = map(int, input().split())
    hit = None
    for tup in l:
        if A in tup or B in tup:
            if hit != None:
                hit += tuple(set(tup+(A, B)))
                hit
            else:
                hit = tuple (set(tup+(A, B)))
            l.remove(tup)
    if hit != None:
        l.append(hit)
    else:
        l.append((A, B))
ans = 0

for item in (l):
    if ans < len(item):
        ans = len(item)
print(ans)


### FIXED CODE ###

class UnionFind():
    def __init__(self, n):
        self.n = n
        self.parents = [-1] * n

    def find(self, x):
        if self.parents[x] < 0:
            return x
        else:
            self.parents[x] = self.find(self.parents[x])
            return self.parents[x]

    def union(self, x, y):
        x = self.find(x)
        y = self.find(y)

        if x == y:
            return

        if self.parents[x] > self.parents[y]:
            x, y = y, x

        self.parents[x] += self.parents[y]
        self.parents[y] = x

    def size(self, x):
        return -self.parents[self.find(x)]

    def same(self, x, y):
        return self.find(x) == self.find(y)

    def members(self, x):
        root = self.find(x)
        return [i for i in range(self.n) if self.find(i) == root]

    def roots(self):
        return [i for i, x in enumerate(self.parents) if x < 0]

    def group_count(self):
        return len(self.roots())

    def all_group_members(self):
        return {r: self.members(r) for r in self.roots()}

    def __str__(self):
        return '\n'.join('{}: {}'.format(r, self.members(r)) for r in self.roots())


N, M = map(int, input().split())
uf = UnionFind(N)

ans = 0
for i in range(M):
    A, B = map(int, input().split())
    uf.union(A-1, B-1)

for i in range(uf.group_count()):
    if ans < uf.size(i):
        ans = uf.size(i)
print(ans)
s = input()
b = [s]
n = len(s)
c = n-1
a = b[c]
if a == '2' or a == '4' or a == '5' or a == '7' or a == '9':
  print('hon')
elif a == '0' or a == '1' or a == '6' or a == '8':
  print('pon')
else:
  print('bon')


### FIXED CODE ###

s = input()
n = len(s)
a = s[n-1:n]
if a == '2' or a == '4' or a == '5' or a == '7' or a == '9':
  print('hon')
elif a == '0' or a == '1' or a == '6' or a == '8':
  print('pon')
else:
  print('bon')
n, p= [int(i) for i in input().split()]
#print(n,p)
ans=0
pp=int(p**(1/n))+1
for i in range(1,pp):
  b=i**n
  c=p/b
  if c.is_integer()==True:
    ans=i
    
print(ans)

### FIXED CODE ###

n=input()
ans=0
ans=n.count('2')
print(ans)
def sqerr(x, t):
  return (x - t)**2

N = input()
X = list(map(int, input()))
ans=0
for P in range(1, N+1):
  sum = 0
  for x in X:
    sum += (x-P)**2
    
  if sum > ans:
    ans = sum
    
print(ans)

### FIXED CODE ###

import numpy as np
 
N = input()
X = list(map(int, input().split()))
ans=9999999
for P in range(0, 101):
  sum = np.sum(list(map(lambda x: (x-P)**2, X)))
  ans = min(ans, sum)
    
print(ans)
N, M = map(int, input().split())
s = []
for i in range(M):
    s.append(list(map(int, input().split())))
p = list(map(int, input().split()))

switch = [['0'], ['1']]

for i in range(n-1):
    tmp = []
    for j in switch:
        tmp.append(j+['0'])
        tmp.append(j+['1'])
    switch = tmp　#スイッチのonoffのマップ化

ans = 0

for i in switch:
    false = 0
    for j in range(M):
        cnt = 0 #onの個数
        for k in range(s[i][0]):
            if i[s[j][1+k]-1] == '1':
                cnt += 1
            if cnt%2 != p[j]:
                false += 1 #条件に合っていなかったらfalseに加算する
        if false == 0:
            ans += 1 #全て条件を満たしていたらansに加算する
print(ans)

### FIXED CODE ###

N, M = map(int, input().split())
s = []
for i in range(M):
    s.append(list(map(int, input().split())))
p = list(map(int, input().split()))

switch = [['0'], ['1']]

for i in range(N-1):
    tmp = []
    for j in switch:
        tmp.append(j+['0'])
        tmp.append(j+['1'])
    switch = tmp #スイッチのonoffのマップ化

ans = 0

for i in switch:
    false = 0
    for j in range(M):
        cnt = 0 #onの個数
        for k in range(s[j][0]):
            if i[s[j][1+k]-1] == '1':
                cnt += 1
        if cnt%2 != p[j]:
            false += 1 #条件に合っていなかったらfalseに加算する
    if false == 0:
        ans += 1 #全て条件を満たしていたらansに加算する
print(ans)
a, b, h = map(int, input().split())
print((a+b)*h//2)

### FIXED CODE ###

a = int(input())
b = int(input())
h = int(input())
print((a + b) * h // 2)
a,b,c,d=map(int,input().spilt())
if a+b==c+d:
    print("Balanced")
elif a+b>c+d:
    print("Left")
elif a+b<c+d:
    print("Right")


### FIXED CODE ###

a,b,c,d=map(int,input().split())
if a+b==c+d:
    print("Balanced")
elif a+b>c+d:
    print("Left")
elif a+b<c+d:
    print("Right")
a = [list(map(int, input().split())) for i in range(3)]
n = int(input())
b = []
for i in range(7):
    b.append(int(input()))
for i in range(3):
    #for j in range(3):
    if a[0 + i][0] in b and a[0 + i][1] in b and a[0 + i][2] in b:
        print('Yes')
        quit()

for i in range(3):
    #for j in range(3):
    if a[0][0 + i] in b and a[1][0 + i] in b and a[2][0 + i] in b:
        print('Yes')
        quit()
        
if a[0][0] in b and a[1][1] in b and a[2][2] in b:
    print('Yes')
    quit()
if a[2][0] in b and a[1][1] in b and a[0][2] in b:
    print('Yes')
    quit()
print('No')

### FIXED CODE ###

a = [list(map(int, input().split())) for i in range(3)]
n = int(input())
b = []
for i in range(n):
    b.append(int(input()))
flag = False
for i in range(3):
    #for j in range(3):
    if a[0 + i][0] in b and a[0 + i][1] in b and a[0 + i][2] in b:
        #print('Yes')
        #quit()
        flag = True
for i in range(3):
    #for j in range(3):
    if a[0][0 + i] in b and a[1][0 + i] in b and a[2][0 + i] in b:
        #print('Yes')
        #quit()
        flag = True
        
if a[0][0] in b and a[1][1] in b and a[2][2] in b:
    #print('Yes')
    #quit()
    flag = True
if a[2][0] in b and a[1][1] in b and a[0][2] in b:
    #print('Yes')
    #quit()
    flag = True
#print('No')
if flag:
    print('Yes')
else:
    print('No')
import math
MOD = 10**9+7
N = int(input())
A = list(map(int, input().split()))
now = A[0]
ans = 0
for i in range(1,N):
    now = now//math.gcd(now, A[i])*A[i]
for i in range(N):
    ans += now//A[i]
    ans %= MOD
print(ans)


### FIXED CODE ###

def prime_factors(n):
    d = {}
    while n%2 == 0:
        d[2] = d.get(2, 0) + 1
        n //= 2
    i = 3
    while i*i <= n:
        while n%i == 0:
            d[i] = d.get(i, 0) + 1
            n //= i
        i += 2
    if n > 2:
        d[n] = d.get(n, 0) + 1
    return d

MOD = 10**9+7
N = int(input())
A = list(map(int, input().split()))
G = {}
for a in A:
    pf = prime_factors(a)
    for k,v in pf.items():
        G[k] = max(G.get(k, 0), v)
lcm = 1
for k,v in G.items():
    lcm *= pow(k, v, MOD)
    lcm %= MOD
ans = 0
for a in A:
    ans += lcm * pow(a, MOD-2, MOD) % MOD
    ans %= MOD
print(ans)
#!/usr/bin/env python3
import sys
def input():
    return sys.stdin.readline()[:-1]

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

    T = ''
    for i in range(len(S)):
        if S[i] == '1':
            T += '1'
        else:
            T += S[i] * K

        if S[i] != '1':
            break

    print(T[K - 1])


if __name__ == '__main__':
    main()


### FIXED CODE ###

#!/usr/bin/env python3
import sys
def input():
    return sys.stdin.readline()[:-1]

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

    if K >= 1e3:
        K = 105

    T = ''
    for i in range(len(S)):
        if S[i] == '1':
            T += '1'
        else:
            T += S[i] * K

        if S[i] != '1':
            break

    print(T[K - 1])


if __name__ == '__main__':
    main()
a=input()
if a[0:4]=="YAKI":
 print("Yes")
else
 print("No")

### FIXED CODE ###

a=input()
if a[0:4]=="YAKI":
  print("Yes")
else:
  print("No")
import sys, math, itertools, bisect, copy, re
from collections import Counter, deque, defaultdict
from itertools import accumulate, permutations, combinations, takewhile, compress, cycle
from functools import reduce
from math import ceil, floor, log10, log2, factorial
from pprint import pprint

# 10倍速いらしい
input = sys.stdin.readline

INF = float('inf')
MOD = 10 ** 9 + 7
EPS = 10 ** -7
sys.setrecursionlimit(1000000)

S = input().rstrip()
T = input().rstrip()

sn = len(S)
M = [dict() for _ in range(sn)]
for i, s in enumerate(S):
    for j in range(sn):
        M[(i - j + sn) % sn][s] = min(M[(i - j + sn) % sn].get(s, INF), j)
    for j in range(sn):
        if M[(i - j + sn) % sn][s] == 0:
            M[(i - j + sn) % sn][s] = M[(i - j + sn + 1) % sn][s] + 1


ans = 0
idx = sn - 1
for t in T:
    if M[idx].get(t, INF) == INF:
        print(-1)
        sys.exit()
    ans += M[idx][t]
    idx = (idx + M[idx][t]) % sn

print(ans)


### FIXED CODE ###

import sys
import bisect

# 10倍速いらしい
input = sys.stdin.readline

INF = float('inf')
MOD = 10 ** 9 + 7
EPS = 10 ** -7
sys.setrecursionlimit(1000000)

S = input().rstrip()
T = input().rstrip()

sn = len(S)
d = dict()
for i, s in enumerate(S):
    d[s] = d.get(s, [])
    d[s].append(i)

nowidx = -1
loop = 0
for t in T:
    l = d.get(t, [])
    if len(l) == 0:
        print(-1)
        sys.exit()
    j = bisect.bisect_right(l, nowidx)
    if len(l) <= j:
        nowidx = l[0]
        loop += 1
    else:
        nowidx = l[j]

# print(loop, nowidx)
print(loop * sn + nowidx + 1)
import math
r = 10000
sqrt = int(math.sqrt(r))
p = [1]*r
p[0] = 0
for i in range(1,sqrt):
    if p[i]:
        for j in range(2*i+1,r,i+1):
            p[j] = 0

while True:
    n = int(raw_input())
    if not n:
        break
    i, num = 0, 1
    while num < n:
        if p[i] == 1:
            num += 1
            sum += i
        i += 1
    print sum

### FIXED CODE ###

import math

r = 105000
sqrt = int(math.sqrt(r))
p = [1]*r
p[0] = 0
for i in range(1,sqrt):
    if p[i]:
        p[2*i+1::i+1] = [0 for x in range(2*i+1,r,i+1)]

s = [0 for i in range(11000)]
s[0] = 2
k = 1
for i in range(2,r):
    if p[i]:
        s[k] = i+1+s[k-1]
        k += 1
        
while True:
    n = int(raw_input())
    if not n:
        break
    print s[n-1]
from collections import Counter
n, k = map(int, input().split())
a = list(map(int, input().split()))
path = []
path.append(1)
x = a[0]
path.append(x)
for i in range(n-2):
    x = a[x-1]
    path.append(x)
print(path)
c = Counter(path)
roop1 = 0
for k, v in c.items():
    if v == 2:
        roop1 = k
if roop1 == 0:
    roop1 = 1
roopidx = path.index(roop1)
roopidx2 = path.index(roop1, roopidx+1)
print(roopidx,roopidx2)
k_mod = (k-roopidx) % (roopidx2-roopidx)
print(path[k_mod+roopidx-1])


### FIXED CODE ###

n, k = map(int, input().split())
a = list(map(int, input().split()))
path = []
x = 1
path.append(x)
for i in range(n):
    x = a[x-1]
    path.append(x)
#print(path)
count = [0]*n
roop_st = 0
roop_len = 0
for town in path:
    count[town-1] += 1
    if count[town-1] == 2:
        roop_st = town
        break
roop_st_idx = path.index(roop_st)
roop_fin_idx = path.index(roop_st, roop_st_idx+1)
#print(roop_st_idx, roop_fin_idx)
if k >= roop_st_idx:
    k_mod = (k - roop_st_idx) % (roop_fin_idx - roop_st_idx)
    print(path[roop_st_idx + k_mod])
else:
    print(path[k])
n = int(input())
a = list(map(int, input().split()))
mod = 10**9 + 7
ans = 0

for i in range(60):
    zeroCnt = 0
    oneCnt = 1
    
    for j in range(n):
        if (a[j] >> i) & 1 == 1:
            oneCnt += 1
        else:
            zeroCnt += 0
    ans += zeroCnt * oneCnt * pow(2, i, mod)
    ans %= mod

pirnt(ans)

### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
mod = 10**9 + 7
ans = 0

for i in range(60):
    zeroCnt = 0
    oneCnt = 0

    for j in range(n):
        if (a[j] >> i) & 1 == 1:
            oneCnt += 1
        else:
            zeroCnt += 1
    ans += zeroCnt * oneCnt * pow(2, i, mod)
    ans %= mod

print(ans)
h, w, a, b = map(int, input().split(' '))
MOD = 10**9 + 7
MAX = int(1.8*10**5)


def modpow(a, b):
    res = 1
    while b:
        if (b & 1):
            res = (res * a) % MOD
        a = (a * a) % MOD
        b >>= 1
    return res


def nCr(n, r):
    if r == 0 or n == r:
        return 1
    return (((f[n] * ivf[n-r]) % MOD) * ivf[r]) % MOD


f = [1] * MAX
ivf = [0] * MAX
for i in range(1, MAX):
    f[i] = (f[i-1] * i) % MOD
    ivf[i] = modpow(f[i], MOD-2)
r = 0
for i in range(b, w):
    y1 = h - a - 1
    x1 = i
    y2 = a - 1
    x2 = w - i - 1
    p = (nCr(x1 + y1, x1) * nCr(x2 + y2, x2)) % MOD
    r = (r + p) % MOD
print(int(r))


### FIXED CODE ###

from array import *
import time
h, w, a, b = map(int, input().split(' '))
MOD = 10**9 + 7
MAX = max(h+w-a-1, a+w)


def modpow(a, b):
    res = 1
    while b:
        if (b & 1):
            res = (res * a) % MOD
        a = (a * a) % MOD
        b >>= 1
    return res


def nCr(n, r):
    if r == 0 or n == r:
        return 1
    return (((f[n] * ivf[n-r]) % MOD) * ivf[r]) % MOD


f = [1] * MAX
f = array('q', f)
ivf = [0] * MAX
ivf = array('q', ivf)
for i in range(1, MAX):
    f[i] = (f[i-1] * i) % MOD
    ivf[i] = modpow(f[i], MOD-2)
r = 0
for i in range(b, w):
    y1 = h - a - 1
    x1 = i
    y2 = a - 1
    x2 = w - i - 1
    p = (nCr(x1 + y1, x1) * nCr(x2 + y2, x2)) % MOD
    r = (r + p) % MOD
print(int(r))
# -*- coding: utf-8 -*-
import math
 
tmp=input()
n = int(tmp.split(" ")[0])
X = int(tmp.split(" ")[1])
tmp=input()
i=int(0)
x=[]
for i in range(n):
    x.append(int(tmp.split(" ")[i]))
x.append(X)
x.sort()
y=[]

i=0
while i < n:
    y.append(x[i+1]-x[i])
    i +=1
y.sort()

z=y[0]
i=0
while i < n:
    z=math.gcd(z,y[i])
    i+=1

print(z)


### FIXED CODE ###

# -*- coding: utf-8 -*-
import fractions
import numpy as np
 
N,X = map(int, input().split())
x = list(map(int,input().split()))
x.append(X)
x.sort()
 
x=np.array(x)
 
y=x[1:]-x[:-1]
 
y.sort()
y=list(set(y))
z=y[0]
m=len(y)
i=0
while i < m:
    z=fractions.gcd(z,y[i])
    i+=1
 
print(z)