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

N, M = [int(i) for i in input().split()]
a = input().split()
A = [int(i) for i in a]
#print(N, M)
#print(A)

for i in range(M):
    n = A.index(max(A))
    A[n] = A[n]//2

print(sum(A))

### FIXED CODE ###

import heapq

N, M = [int(i) for i in input().split()]
A = [-int(i) for i in input().split()]
#print(N, M)
#print(A)

heapq.heapify(A)
for i in range(M):
    a = -heapq.heappop(A)
    a = a//2
    heapq.heappush(A, -a)

print(-sum(A))
### BUGGY CODE ###

import sys
n,k = map(int,input().split())
ls = list(map(int,input().split()))
new = []
def sub(k,s):
    return k-s
p = [1]
i = 0
a = 0
t = 0
ans1 = 0
ans2 = 0
while i<k-1:
    if i ==0:
        a = ls[i]
        p.append(a)
        if len(p) != len(list(set(p))):
            q = [p[-1]]*(len(p))
            p.pop()
            new = list(map(sub,p,q))
            t = new.index(0)
            ans1 = len(p[:t])
            ans2 = len(p[t:])
            print(p[((k+1-ans1)%ans2)-1])
            sys.exit()
        b = ls[a-1]
        p.append(b)
        if len(p) != len(list(set(p))):
            q = [p[-1]]*(len(p))
            p.pop()
            new = list(map(sub,p,q))
            t = new.index(0)
            ans1 = len(p[:t])
            ans2 = len(p[t:])
            print(p[((k+1-ans1)%ans2)-1])
            sys.exit()
        i += 1
    else:
        a = b
        b = ls[a-1]
        p.append(b)
        if len(p) != len(list(set(p))):
            q = [p[-1]]*(len(p))
            p.pop()
            new = list(map(sub,p,q))
            t = new.index(0)
            ans1 = len(p[:t])
            ans2 = len(p[t:])
            ansl = p[t:]
            print(ansl[((k+1-ans1)%ans2)-1])
            sys.exit()
        i += 1
print(b)




### FIXED CODE ###

n,k = map(int,input().split())
ls = list(map(int,input().split()))
fi = [-1]*(n+1)
fi[1] = 0
a = 0
aa = 0
for i in range(k):
    if fi[ls[a]] == -1:
        fi[ls[a]] = i + 1
        aa = a
        a = ls[a] - 1
    else:
        ind = fi[ls[a]]
        t = (k - ind) % (max(fi) + 1 - ind)
        t += ind
        print(fi.index(t))
        break
else:
    print(ls[aa])
### BUGGY CODE ###

import collections

n = int(input())
s = input()

c = collections.Counter(s)
r = c['R'] * c['G'] * c['B']

for i in range(n):
    for k in range(i, n):
        j = (i + k) // 2
        if (i + k) % 2 == 0 and 0 < 2 < n:
            if s[i] != s[k] and s[k] != s[j] and s[i] != s[j]:
                r -= 1

print(r)


### FIXED CODE ###

import collections

n = int(input())
s = input()

c = collections.Counter(s)
r = c['R'] * c['G'] * c['B']

for i in range(n):
    for k in range(i, n):
        j = (i + k) // 2
        if (i + k) % 2 == 0 and 0 < 2 < n:
            if s[i] != s[k] and s[k] != s[j] and s[i] != s[j]:
                r -= 1

print(r)
### BUGGY CODE ###

def multiplication():
    # 入力
    N = int(input())
    A = list(map(int, input().split()))
    # 計算処理
    multi = 1
    for i in range(N):
        multi = multi * A[i]
    # 10^18比較
    if multi > 10 ** 18:
        return -1
    else:
        return multi

result = multiplication()
print(result)

### FIXED CODE ###

def multiplication():
    # 入力
    N = int(input())
    A = list(map(int, input().split()))
    # かける数に0があるか確認
    if 0 in A:
        return 0
    # 計算処理
    multi = 1
    for i in range(N):
        multi = multi * A[i]
        # 10^18比較
        if multi > 10 ** 18:
            return -1
    return multi

result = multiplication()
print(result)
### BUGGY CODE ###

#bA
A, B, K = map(int, input().split())
list = [i for i in range(A, B+1)] #上限下限を先に決めておく
set1 = set(list[:K])
set2 = set(list[-K:])
print(*sorted(set1|set2), sep='\n')

### FIXED CODE ###

A, B, K = map(int, input().split())
list = [i for i in range(A, A+K)]
list.extend(i for i in range(B+1-K, B+1))
list = sorted(set(list))
for i in list:
    if A<=i<=B:
        print(i)
### BUGGY CODE ###

from collections import deque

n, k = map(int, input().split())
a = list(map(int, input().split()))

kotae = deque([])
lst = []
d = deque(a)
pattern = 0
while True:
    for kazu in d:
        if kazu in kotae:
            ind = list(kotae).index(kazu)
            kotae = deque(list(kotae)[:ind])
        else:
            kotae.append(kazu)
    kotae_lst = list(kotae)
    if kotae_lst == []:
        lst.append(kotae_lst)
        pattern += 1
        break
    else:
        lst.append(kotae_lst)
        pattern += 1

doko = k % pattern
ans = lst[doko-1]
if ans != []:
    print(' '.join(map(str, ans)))

### FIXED CODE ###

n, k = map(int, input().split())
a = list(map(int, input().split()))

dic = {}
for i in range(n):
    if a[i] in dic:
        dic[a[i]].append(i)
    else:
        dic[a[i]] = [i]

zero = [-1 for i in range(n)]
for key, value in dic.items():
    num = len(value)
    for i in range(num-1):
        zero[value[i]] = value[i+1] - value[i] + 1
    zero[value[-1]] = n - value[-1] + value[0] + 1

lst = [zero]
while lst[-1][0] <+ n*k - 1:
    before = lst[-1]
    after = []
    for i in range(n):
        after.append(before[i] + before[(before[i]+i)%n])
    lst.append(after)
lst.pop()

i = 0
while lst != []:
    lsti = lst.pop()
    while True:
        if i + lsti[i%n] <= n*k - 1:
            i = i + lsti[i%n]
        else:
            break

i = i % n
nokori = a[i:]
lst = []
dic = {}
ko = 0
for i in range(len(nokori)):
    if nokori[i] not in dic:
        lst.append(nokori[i])
        dic[nokori[i]] = ko
        ko += 1
    else:
        lst = lst[:dic[nokori[i]]]
        dic = {}
        for j in range(len(lst)):
            dic[lst[j]] = j
        ko = len(lst)
print(*lst)
### BUGGY CODE ###

from collections import deque

N, K = map(int, input().split())
T = [[] for i in range(N)]
E = []
for i in range(N-1):
    a, b = map(int, input().split())
    a, b = a-1, b-1
    T[a].append(b)
    T[b].append(a)
    E.append((a, b))


def bfs(n):
    visited = [False] * N
    dist = [0] * N
    queue = deque([n])
    while queue:
        node = queue.pop()
        if visited[node]:
            continue
        visited[node] = True
        for n in T[node]:
            if not visited[n]:
                dist[n] = dist[node] + 1
                queue.appendleft(n)
    return dist


dist = []
for i in range(N):
    dist.append(bfs(i))

ans = float('inf')
if K % 2 == 0:
    # 全ての頂点について全探索
    for i in range(N):
        ans = min(ans, len([d for d in dist[i] if d > K / 2]))
else:
    # 全ての辺について全探索
    for a, b in E:
        adist = [(1 if min(d1, d2) > (K-1) / 2 else 0) for d1, d2 in zip(dist[a], dist[b])]
        ans = min(ans, sum(adist))

print(ans)


### FIXED CODE ###

from collections import deque

N, K = map(int, input().split())
T = [[] for i in range(N)]
E = []
for i in range(N-1):
    a, b = map(int, input().split())
    a, b = a-1, b-1
    T[a].append(b)
    T[b].append(a)
    E.append((a, b))


def dfs(n):
    visited = [False] * N
    stack = [[n, 0]]
    longest = [-1, -1]

    while stack:
        node, weight = stack.pop()
        if visited[node]:
            continue
        visited[node] = True
        if longest[1] < weight:
            longest = [node, weight]

        for n in T[node]:
            if not visited[n]:
                stack.append([n, weight + 1])

    return longest


def bfs(n):
    visited = [False] * N
    dist = [0] * N
    queue = deque([n])
    while queue:
        node = queue.pop()
        if visited[node]:
            continue
        visited[node] = True
        for n in T[node]:
            if not visited[n]:
                dist[n] = dist[node] + 1
                queue.appendleft(n)
    return dist


xn, xw = dfs(0)
yn, yw = dfs(xn)
diameter = yw

d = bfs(0)
ans = float('inf')
if K % 2 == 0:
    # 全ての頂点について全探索
    for i in range(N):
        dist = bfs(i)
        ans = min(ans, len(list(filter(lambda x: K / 2 < x, dist))))
else:
    # 全ての辺について全探索
    for a, b in E:
        dist1 = bfs(a)
        dist2 = bfs(b)
        dist = [min(d1, d2) for d1, d2 in zip(dist1, dist2)]
        ans = min(ans, len(list(filter(lambda x: (K-1) / 2 < x, dist))))

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

x,k,d=map(int,input().split())
for i in range(k):
  if x>=0:
    x-=d
  else:
    x+=d
print(abs(x))

### FIXED CODE ###

x,k,d=map(int,input().split())
if x>=0:
  if x//d>=k:
    print(abs(x-k*d))
  else:
    if (k-(x//d))%2==0:
      print(abs(x-(x//d)*d))
    else:
      print(abs(x-(x//d)*d-d))
else:
  if -x//d>=k:
    print(abs(x+k*d))
  else:
    if (k-(-x//d))%2==0:
      print(abs(x+(-x//d)*d))
    else:
      print(abs(x+(-x//d)*d+d))
### BUGGY CODE ###

from collections import Counter

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

maxPow = (1 << (max(A) * 2).bit_length())
cntA = Counter(A)

ans = 0
while maxPow > 0:
    for a in A:
        if maxPow - a == a:
            if cntA[a] >= 2:
                ans += cntA[a] // 2
                cntA[a] %= 2
        elif cntA[a] > 0 and cntA[maxPow - a] > 0:
            ans += 1
            cntA[a] -= 1
            cntA[maxPow - a] -= 1
    maxPow //= 2

print(ans)

### FIXED CODE ###

from collections import Counter

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

maxPow = (1 << (max(A) * 2).bit_length())
cntA = Counter(A)

ans = 0
while maxPow > 0:
    for a in A:
        if maxPow - a == a:
            if cntA[a] >= 2:
                ans += cntA[a] // 2
                cntA[a] %= 2
        elif cntA[a] > 0 and cntA[maxPow - a] > 0:
            ans += 1
            cntA[a] -= 1
            cntA[maxPow - a] -= 1
    maxPow //= 2

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

import sys

sys.setrecursionlimit(10 ** 7)
input = sys.stdin.readline
f_inf = float('inf')
mod = 10 ** 9 + 7


def resolve():
    n = int(input())
    grid = [list(map(int, input().split())) for _ in range(n)]
    flg = [[True] * n for _ in range(n)]

    for k in range(n):
        for i in range(n):
            for j in range(n):
                if grid[i][k] + grid[k][j] < grid[i][j]:
                    print(-1)
                    exit()
                elif grid[i][k] + grid[k][j] == grid[i][j] and i != k and j != k:
                    flg[i][j] = False

    res = 0
    for i in range(n):
        for j in range(n):
            if flg[i][j]:
                res += grid[i][j]
    print(res // 2)


if __name__ == '__main__':
    resolve()


### FIXED CODE ###

import sys

sys.setrecursionlimit(10 ** 7)
input = sys.stdin.readline
f_inf = float('inf')
mod = 10 ** 9 + 7


def resolve():
    n = int(input())
    grid = [list(map(int, input().split())) for _ in range(n)]
    flg = [[True] * n for _ in range(n)]

    for k in range(n):
        for i in range(n):
            for j in range(n):
                if grid[i][k] + grid[k][j] < grid[i][j]:
                    print(-1)
                    exit()
                elif grid[i][k] + grid[k][j] == grid[i][j] and i != k and j != k:
                    flg[i][j] = False

    res = 0
    for i in range(n):
        for j in range(n):
            if flg[i][j]:
                res += grid[i][j]
    print(res // 2)


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

import fractions

  
def isprime(x):
    count = 1
    for i in range(2,int(x**0.5)+1):
        if x % i == 0:
            count += 1
      
    return count

a,b = map(int,input().split())
g = fractions.gcd(a,b)



ans=1
for i in range(2,g+1):
    if g % i == 0:
      
        if isprime(i) == 1:
            ans+=1
       

print(ans)
  

  

  

  

  


### FIXED CODE ###

def gcd(x, y):
    a, b = x, y
    r = a % b
    while r != 0:
        a, b = b, r
        r = a % b
    return b

def divisors(x):
    D = []
    for i in range(1, int(x**0.5) + 1):
        if x % i == 0:
            D.append(i)
            if i != x**0.5:
                D.append(x // i)
    D.sort()
    return D

def isprime(x):
    t = 1
    for i in range(2, int(x**0.5) + 1):
        if x % i == 0:
            t = 0
            break
    if t == 1 and x != 1:
        return True
    else:
        return False


a, b = map(int, input().split())

CD = divisors(gcd(a, b))

ans = 1
for cd in CD:
    if isprime(cd):
        ans += 1

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

N,K = map(int,input().split())
LR = [list(map(int,input().split())) for i in range(K)]
LR.sort()
mod = 998244353
ma = [0] * N
ma[0] = 1
for i in range(N):
    if i >1:
        ma[i] += ma[i-1]
    p = ma[i]
    if p != 0:
        for l,r in LR:
            if i+l <N:
                ma[i+l] += p
            else:
                break
            if i+r+1<N:
                ma[i+r+1] -= p
print(ma[N-1]%mod)

### FIXED CODE ###

N,K = map(int,input().split())
LR = [list(map(int,input().split())) for i in range(K)]
LR.sort()
mod = 998244353
ma = [0] * N
ma[0] = 1
for i in range(N):
    if i >1:
        ma[i] += ma[i-1]
    p = ma[i]%mod
    if p != 0:
        for l,r in LR:
            if i+l <N:
                ma[i+l] += p
            else:
                break
            if i+r+1<N:
                ma[i+r+1] -= p
print(ma[N-1]%mod)
### BUGGY CODE ###

N = int(input())
s = [input() for i in range(N)]

words = list(set(s))
max_num = 0
t = []
for word in words:
    count = s.count(word)

    if count > max_num:
        max_num = count
        t = [word]
    elif count == max_num:
        t.append(word)

t = sorted(t)
for i in t:
  print(i)


### FIXED CODE ###

import collections

N = int(input())
s = [input() for i in range(N)]

c = collections.Counter(s)
max_num = max(c.values())
d = []
for key,value in c.items():
  if value == max_num:
    d.append(key)

for i in sorted(d):
  print(i)
### BUGGY CODE ###

from collections import deque

n,q=map(int,input().split())
ab=[list(map(int,input().split())) for i in range(n-1)]
p=[0 for i in range(n+1)]
edge=[[] for i in range(n+1)]
que=deque([])
que.append(1)
visited=[False for i in range(n+1)]
visited[0]=True
for i,j in ab:
  edge[i].append(j)
  edge[j].append(i)
for i in range(q):
  a,b=map(int,input().split())
  p[a]+=b

while que:
  v=que.pop()
  visited[v]=True
  for nv in edge[v]:
    if visited[nv]==True:
      continue
    p[nv]+=p[v]
    que.append(nv)
p.pop(0)
print(*p)


### FIXED CODE ###

from collections import deque

n,q=map(int,input().split())
ab=[list(map(int,input().split())) for i in range(n-1)]
p=[0 for i in range(n+1)]
edge=[[] for i in range(n+1)]
que=deque([])
que.append(1)
visited=[False for i in range(n+1)]
visited[0]=True
for i,j in ab:
  edge[i].append(j)
  edge[j].append(i)
for i in range(q):
  a,b=map(int,input().split())
  p[a]+=b

while que:
  v=que.pop()
  visited[v]=True
  for nv in edge[v]:
    if visited[nv]==True:
      continue
    p[nv]+=p[v]
    que.append(nv)
p.pop(0)
print(*p)
### BUGGY CODE ###

import numpy as np
N = int(input())
data = np.array(input().split(), dtype=np.int64)

for i in range(1,N+1):
  ans = np.count_nonzero(data == i)
  print(ans)

### FIXED CODE ###

from collections import Counter

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

count = Counter(data)

for i in range(1, N+1):
    ans = count[i]
    print(ans)
### BUGGY CODE ###

N = int(input())
emp = list(map(int,input().split()))
emp.sort()
def rem_val(arr, value):
    while value in arr:
        try:
            arr.remove(value)
        except:
            break
for i in range(N):
    if(len(emp)!=0):
        print(emp.count(i+1))
        rem_val(emp,i+1)
    else:
        print(0)


### FIXED CODE ###

N = int(input())
emp = list(map(int,input().split()))
ans_l = [0]*(N+1)
for i in range(N-1):
    a = emp[i]
    ans_l[a] +=1
for i in range(1,N+1):
    print(ans_l[i])
### BUGGY CODE ###

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

MOD = 10**9+7

N, M = map(int, input().split())
S = list(map(int, input().split()))
T = list(map(int, input().split()))

X = [0]*(N+1)
X[0] = 1

for t in T:
    x = 1
    
    for i in range(N):
        prevX = X[i+1]

        if t == S[i]:
            X[i+1] += x

        x += prevX
        x %= MOD

print(sum(X)%MOD)


### FIXED CODE ###

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


def f(N, M, S, T):
    W = [1]*(N+1)

    for i, t in enumerate(T):
        W2 = W[:]
        
        k = 0
        for j, s in enumerate(S):
            if t == s:
                k += W[j]

            x = (W2[j+1] + k)%1000000007
            W2[j+1] = x

        W = W2
        
    return W[-1]



def main():
    N, M = map(int, input().split())
    S = list(map(int, input().split()))
    T = list(map(int, input().split()))

    print(f(N,M,S,T))



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

if __name__ == '__main__':
    N = int(input())
    A = list(map(int, input().split()))

    A.insert(0, 0)

    d_map = dict()
    d_map[(0,)] = 0

    for i in range(1, N + 1):
        prev_path = (0,)
        for j in range(1, N + 1):
            if i == j:
                continue

            path = prev_path + (j,)
            d_map[path] = d_map[prev_path] + abs(A[j] - A[prev_path[-1]])
            prev_path = path

        path = prev_path + (0,)
        d_map[path] = d_map[prev_path] + abs(A[0] - A[prev_path[-1]])
        print(d_map[path])


### FIXED CODE ###

if __name__ == '__main__':
    N = int(input())
    A = list(map(int, input().split()))

    # N = 6
    # A = [-679, -2409, -3258, 3095, -3291, -4462]

    # N = 3
    # A = [3, 5, -1]

    # 始点を追加
    A = [0] + A
    A = A + [0]
    cum_map = dict()

    # for i in range(1, N + 1):
    #     cum_map[(i - 1, i)] = abs(A[i] - A[i - 1])

    cum_map[(0, 0)] = 0
    for k in range(1, N + 1):
        cum_map[(0, k)] = cum_map[(0, k - 1)] + abs(A[k] - A[k - 1])

    for i in range(1, N + 1):
        if i == 1:
            d = abs(A[i + 1] - A[0]) + cum_map[(0, N)] - cum_map[
                (0, i + 1)] + abs(A[N] - A[0])
        elif i == N:
            d = abs(A[N - 1] - A[0]) + cum_map[(0, N - 1)]
        else:
            d = cum_map[(0, i - 1)] + abs(A[N] - A[0]) \
                + abs(A[i + 1] - A[i - 1]) \
                + (cum_map[(0, N)] - cum_map[(0, i + 1)])
        # print("i:", d)
        print(d)

    # print(cum_map)
### BUGGY CODE ###

from itertools import accumulate
N, K = map(int, input().split())
A = [int(i) for i in input().split()]

for _ in range(K):
    S = [0] * (N + 1)
    for i, a in enumerate(A):
        l = min(N-1, max(0, i-a))
        r = min(N-1, i+a)
        S[l] += 1
        S[r+1] -= 1
    A = list(accumulate(S))[:-1]
    if all([a == N for a in A]):
        break
print(*A)

### FIXED CODE ###

from itertools import accumulate
N, K = map(int, input().split())
A = [int(i) for i in input().split()]

for _ in range(K):
    S = [0] * (N + 1)
    for i, a in enumerate(A):
        l = min(N-1, max(0, i-a))
        r = min(N-1, i+a)
        S[l] += 1
        S[r+1] -= 1
    A = list(accumulate(S))[:-1]
    if all([a == N for a in A]):
        break
print(*A)
### BUGGY CODE ###

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

C = []
ans = 0
for i in range(N):
    C.append(0)
    C = list(map(lambda x:x+A[i],C))
    ans += len(list(filter(lambda x:x==0,C)))
    
print(ans)

### FIXED CODE ###

from collections import defaultdict

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

C = defaultdict(int)

ans = 0
sumA = 0
for a in A:
    sumA += a
    C[sumA] += 1
    if C[sumA] >=2:
        ans += C[sumA]-1
        
for i in range(1,C[0]+1): ans+= 1
    
print(ans)
### BUGGY CODE ###

A, B, N = map(int,input().split())
mmax=0
N_max = N if B > N else B
for n in range(1, N_max + 1):
    _max = int(A*n/B)-(A*int(n/B))
    if mmax < _max:
        mmax=_max

print(mmax)

### FIXED CODE ###

A, B, N = map(int,input().split())
mmax=0
N_max = N if B > N else B
for n in reversed(range(N_max - A, N_max + 1)):
    _max = int(A*n/B)-(A*int(n/B))
    if mmax < _max:
        mmax=_max

print(mmax)
### BUGGY CODE ###

import sys

#fp = open("input.txt", "r")
fp = sys.stdin

while True:
    req = map(int, fp.readline()[:-1].split(" "))
    if req[0] + req[1] == 0:
        break

    n = req[0]
    k = req[1]

    sum_max = 0
    num_list = []
    
    for i in xrange(n):
        num = int(fp.readline()[:-1])
        num_list.append(num)
        if k > 0:
            sum_max += num
            k -= 1
            continue
        else:
            num_list.pop(0)
            sum_tmp = sum(num_list)
            if sum_tmp > sum_max:
                sum_max = sum_tmp

    print sum_max

### FIXED CODE ###

import sys

#fp = open("input.txt", "r")
fp = sys.stdin

while True:
    req = map(int, fp.readline()[:-1].split(" "))
    if req[0] + req[1] == 0:
        break

    n = req[0]
    k = req[1]

    sum_max = 0
    sum_prev = 0
    num_list = []
    
    for i in xrange(n):
        num = int(fp.readline()[:-1])
        num_list.append(num)
        if k > 0:
            sum_max += num
            k -= 1
            sum_prev = sum_max
            continue
        else:
            sum_tmp = sum_prev + num - num_list.pop(0)
            sum_prev = sum_tmp
            if sum_tmp > sum_max:
                sum_max = sum_tmp

    print sum_max
### BUGGY CODE ###

MOD = 1000000007
L = input()
n = len(L)
ans = 0
one = 0
for i in range(n):
    c = L[i]
    if c == '1':
        m = n - i - 1
        # print('m =', m)
        t = pow(3, m, MOD) * pow(2, one)
        # print('t =', t)
        ans += t
        ans %= MOD
        one += 1
t = pow(2, one)
ans += t
ans %= MOD
print(ans)


### FIXED CODE ###

MOD = 1000000007
L = input()
n = len(L)
ans = 0
one = 0
for i in range(n):
    c = L[i]
    if c == '1':
        m = n - i - 1
        # print('m =', m)
        t = pow(3, m, MOD) * pow(2, one, MOD)
        # print('t =', t)
        ans += t
        ans %= MOD
        one += 1
t = pow(2, one)
ans += t
ans %= MOD
print(ans)
### BUGGY CODE ###

n, k = map(int, input().split())
a = list(map(int, input().split()))

b = 0
c = 0
for i in range(1,min(n,k-1)+1):
  c += a[i-1]
  c2 = c
  for j in range(n-i+1):
    if c2%k == i:
      b += 1
    if i+j < n:
      c2 += a[i+j] - a[j]
print(b)

### FIXED CODE ###

n, k = map(int, input().split())
a = list(map(int, input().split()))
a[0] = (a[0]-1)%k
for i in range(1,n):
  a[i] = (a[i]+a[i-1]-1)%k
ans = 0
b = {0:1}
for i in range(n):
  if i>0:
    b[a[i-1]] = b.get(a[i-1],0) + 1
  if i>=k:
    b[a[i-k]] -= 1
  if i==k-1:
    b[0] -= 1
  ans += b.get(a[i],0)
print(ans)
### BUGGY CODE ###

import numpy as np
import math 
n = int(input())
s = input()
a = np.zeros(n)
rgb = [[] for _ in range(3)]
rgb2 = np.zeros((3,n), int)
idx = {'R':0, 'G':1, 'B':2}
for i in range(n):
  rgb[idx[s[i]]].append(i)
  rgb2[idx[s[i]]][i] = 1
#

counts = 0
for i in rgb[0]:
  for j in rgb[1]:
    if(i+j >= 2*n-1):
      break
    if((i+j)%2 == 0 and rgb2[idx['B']][((i+j)//2)] == 1):
        counts += 1
for i in rgb[0]:
  for j in rgb[2]:
    if(i+j >= 2*n-1):
      break
    if((i+j)%2 == 0 and rgb2[idx['G']][(i+j)//2] == 1):
      counts += 1
for i in rgb[1]:
  for j in rgb[2]:
    if(i+j >= 2*n-1):
      break
    if((i+j)%2 == 0 and rgb2[idx['R']][(i+j)//2] == 1):
      counts += 1
print(len(rgb[0])*len(rgb[1])*len(rgb[2]) - counts)

### FIXED CODE ###

import numpy as np
n = int(input())
s = input()

r = s.count('R')
g = s.count('G')
b = s.count('B')

counts = 0
for i in range(n):
  for j in range(i+1, n):
    k = 2*j-i
    if(k >= n):
      break
    if(s[i] != s[j] and s[j]!=s[k] and s[k]!=s[i]):
      counts += 1
print(r*g*b - counts)
### BUGGY CODE ###

import itertools

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

l = list(itertools.combinations(L,3))
t_sum = 0
for li in l:
  li = list(li)
  li.sort()
  if li[0]+li[1] > li[2]:
    t_sum+=1
print(t_sum)

### FIXED CODE ###

import bisect

n = int(input())

l = sorted(list(map(int, input().split())))
ans = 0

for i in range(n):
  for j in range(i+1, n):
    k = bisect.bisect_left(l, l[i]+l[j])
    #if k > j:
    ans += k - j - 1

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

def make_divisors(n):
    lower_divisors , upper_divisors = [], []
    i = 1
    while i*i <= n:
        if n % i == 0:
            lower_divisors.append(i)
            if i != n // i:
                upper_divisors.append(n//i)
        i += 1
    return lower_divisors + upper_divisors[::-1]

n=int(input())
c=0
ans=0
for i in range(n-1):
  c=i+1
  div_list=make_divisors(n-c)
  ans+=len(div_list)
  
print(ans)

### FIXED CODE ###

n=int(input())
ans=0
for i in range(n-1):
  a=i+1
  ans+=(n-1)//a
print(ans)