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

N = int(input())
X = input()
MAX = 2 * (10 ** 5) + 1

base = [0] * (MAX+1)
for num in range(1, MAX+1):
  cnt = 0
  bin_num = bin(num)[2:]
  for j in bin_num:
    cnt += int(j)
  p = num % cnt
  base[num] = base[p]+1

for i in range(N):
  if(X[i] == '0'):
    p = X[:i] + '1' + X[i+1:]
  else:
    p = X[:i] + '0' + X[i+1:]
  cnt = 0
  for j in range(N):
    cnt += int(p[j])
  x = int(p, 2)
  if(x <= MAX):
    print(base[x])
  else:
    print(base[x%cnt]+1)

### FIXED CODE ###

N = int(input())
X = input()
MAX = 2 * (10 ** 5) + 1

base = [0] * (MAX+1)
for num in range(1, MAX+1):
  cnt = 0
  bin_num = bin(num)[2:]
  for j in bin_num:
    cnt += int(j)
  p = num % cnt
  base[num] = base[p]+1

xcnt = 0
for i in range(N):
  xcnt += int(X[i])

#mod xnt+1  
X0to1 = [1] * N
X0to1sum = 0
k = 1
for i in range(N-1, -1, -1):
  X0to1[i] = k % (xcnt+1)
  X0to1sum += X0to1[i] * int(X[i])
  k = (k*2)%(xcnt+1)


  
#mod xnt-1
X1to0 = [0] * N
X1to0sum = 0
if(xcnt >= 2):
  k = 1
  for i in range(N-1, -1, -1):
    X1to0[i] = k % (xcnt-1)
    X1to0sum += X1to0[i] * int(X[i])
    k = (k*2)%(xcnt-1)


for i in range(N):
  if(X[i] == '0'):
    print(base[(X0to1sum + X0to1[i])%(xcnt+1)]+1)
  else:
    if(xcnt >= 2):
      print(base[(X1to0sum - X1to0[i])%(xcnt-1)]+1)
    else:
      print(0)
### BUGGY CODE ###

def main():
    n = int(input())
    s = input()
    
    ans = 10**9
    for i in range(n):
        tmp = 0
        s_center = s[i] 
        for s1 in s[:i]:
            if s1 != 'E':
                tmp += 1
        for s2 in s[i+1:]:
            if s2 != 'W':
                tmp += 1
        ans = min(ans, tmp)
        
    print(ans)
    
        
if __name__ == '__main__':
    main()

### FIXED CODE ###

def main():
    n = int(input())
    s = input()
    
    a = [0] * (n)
    b = [0] * (n)
    for i in range(1, n):
        if s[i - 1] == 'W':
            a[i] = a[i - 1] + 1
        else:
            a[i] = a[i - 1]
        if s[n- i] == 'E':
            b[n - i - 1] = b[n - i ] + 1
        else:
            b[n- i - 1] = b[n - i ]
    ans = 10**9
    for aa, bb in zip(a, b):
        ans = min(ans, aa++bb)
    print(ans) 
        
if __name__ == '__main__':
    main()
### BUGGY CODE ###

import numpy as np

n, k, q = map(int, input().split())
a = [int(input()) for _ in range(q)]
p = np.array([k for i in range(n)])
for i in a:
  p = p - 1 
  p[i-1] += 1
for i in p:
  if i > 0:
    print('Yes')
  else:
    print('No')

### FIXED CODE ###

n, k, q = map(int, input().split())
a = [int(input()) for _ in range(q)]
lena = len(a)
p = [k-lena for i in range(n)]
for i in a:
  p[i-1] += 1
for i in p:
  if i > 0:
    print('Yes')
  else:
    print('No')
### BUGGY CODE ###

import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 
ls = np.array(a)

ans = []
for ind in range(n, 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

### FIXED CODE ###

n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))
### BUGGY CODE ###

import math

x = int(input())

a = 0
b = 0
while a ** 5 < x:
    a += 1
a -= 1

b = -(x - a ** 5)

f = False
if b < 0:
    b = -b
    f = True
    
for i in range(5):
    b = math.sqrt(b)

while b - int(b) != 0.0:
    a += 1
    b = -(x - a ** 5)

    f = False
    if b < 0:
        b = -b
        f = True
        
    for i in range(5):
        b = math.sqrt(b)

if f == True:
    b = -int(b)
print(a , b)

### FIXED CODE ###

import math

x = int(input())

f = False
for a in range(-200,200):
    for b in range(-200, 200):
        if a ** 5 - b ** 5 == x:
            print(a, b)
            f = True
            break
    if f == True:
        break
### BUGGY CODE ###

N, M = map(int,input().split())
A_list = []
for i in range(M):
    A_list.append(int(input()))
if A_list:
    if A_list[0] == 1:
        Dp_list = [1,0] + [0] * (N-1)
    else:
        Dp_list = [1,1] + [0] * (N-1)
else:
    Dp_list = [1,1] + [0] * (N-1)
if N != 1:
    for i in range(2, N + 1):
        if i not in A_list:
            Dp_list[i] = Dp_list[i-2] + Dp_list[i-1]
        elif i in A_list and i-1 in A_list:
            Dp_list = [0] * (N + 1)
            break
        else:
            Dp_list[i] = 0
        if Dp_list[i] > 1000000007:
            Dp_list[i] -= 1000000007
    print(Dp_list[N])
else:
    print(1)

### FIXED CODE ###

N, M = map(int,input().split())
A_list = set([int(input()) for _ in range(M)])
Dp_list = [0] * (N+1)
Dp_list[0] = 1

if 1 in A_list:
    Dp_list[1] = 0
else:
    Dp_list[1] = 1

if N != 1:
    for i in range(2, N + 1):
        if i in A_list:
            continue

        Dp_list[i] = Dp_list[i-2] + Dp_list[i-1]
        Dp_list[i] %= 1000000007
    print(Dp_list[N])
else:
    print(1)
### BUGGY CODE ###

s=input()
line=[int(c) for c in s]
length=len(line)
while True:
  line2=[]
  for i in range(len(line)-1):
    if line[i]!=2 and line[i]!=line[i+1]:
      line[i]=2
      line[i+1]=2
    elif line[i]!=2:
      line2.append(line[i])
  if len(line)!=0 and line[len(line)-1]!=2:
      line2.append(line[len(line)-1])
  if 2 in line:
    line=[i for i in line2]
  else:
    break
print(length-len(line))

### FIXED CODE ###

s=str(input())
if s.count('1')>s.count('0'):
    print(s.count('0')*2)
else:
    print(s.count('1')*2)
### BUGGY CODE ###

import sys
sys.setrecursionlimit(1000000)

N,M,K=map(int,input().split())

P=[i for i in range(N+1)]
size=[1 for i in range(N+1)]

def find(a):
    if a==P[a]:
        return a
    else:
        return find(P[a])
        
def union(b,c):
    B=find(b)
    C=find(c)
    if size[C]>size[B]:
        P[B]=P[C]
    else:
        P[C]=P[B]
G=[0 for i in range(N+1)]
for i in range(M):
    a,b=map(int,input().split())
    G[a]+=1
    G[b]+=1
    union(a,b)
#print(P)
PP=[]
for i in range(N+1):
    PP.append(find(P[i]))
#print(PP)
PPP=[0 for i in range(N+1)]
for i in range(1,N+1):
    PPP[PP[i]]+=1
#print(PPP)

B=[[]for i in range(N+1)]
for i in range(K):
    c,d=map(int,input().split())
    B[c].append(d)
    B[d].append(c)
#print(G)
#print(B)
ans=[]
for i in range(1,N+1):
    ANS=PPP[PP[i]]-1-G[i]
    for j in B[i]:
        if find(j)==PP[i]:
            ANS-=1
    ans.append(ANS)
print(*ans)

### FIXED CODE ###

import sys
sys.setrecursionlimit(1000000)
input=sys.stdin.readline

N,M,K=map(int,input().split())

P=[i for i in range(N+1)]
size=[1 for i in range(N+1)]

def find(a):
    if a==P[a]:
        return a
    else:
        return find(P[a])
        
def union(b,c):
    B=find(b)
    C=find(c)
    if size[C]>size[B]:
        P[B]=P[C]
        size[C]+=size[B]
    else:
        P[C]=P[B]
        size[B]+=size[C]
G=[0 for i in range(N+1)]
for i in range(M):
    a,b=map(int,input().split())
    G[a]+=1
    G[b]+=1
    union(a,b)
#print(P)
PP=[]
for i in range(N+1):
    PP.append(find(P[i]))
#print(PP)
PPP=[0 for i in range(N+1)]
for i in range(1,N+1):
    PPP[PP[i]]+=1
#print(PPP)

B=[[]for i in range(N+1)]
for i in range(K):
    c,d=map(int,input().split())
    B[c].append(d)
    B[d].append(c)
#print(G)
#print(B)
ans=[]
for i in range(1,N+1):
    ANS=PPP[PP[i]]-1-G[i]
    for j in B[i]:
        if PP[j]==PP[i]:
            ANS-=1
    ans.append(ANS)
print(*ans)
### BUGGY CODE ###

n = int(input())
caps = []
pos = [0]*6

for i in range(5):
    caps.append(int(input()))

pos[0] = n
count = 0

while pos[5] != n:
    count += 1
    for i in reversed(range(5)):
        if pos[i] == 0:
            continue
        elif pos[i] < caps[i-1]:
            pos[i+1] = pos[i+1] + pos[i]
            pos[i] = 0
        else:
            pos[i+1] = pos[i+1] + caps[i-1]
            pos[i] = pos[i] - caps[i-1]

print(count)


### FIXED CODE ###

import math

n = int(input())
caps = []

for i in range(5):
    caps.append(int(input()))

minV = min(caps)

print(math.ceil(n / minV) + 4)
### BUGGY CODE ###

N = int(input())
X = input()
ans = [0 for _ in range(N)]

def popcount(n):
  c = 0
  n = str(bin(n))[2:]
  for _ in range(len(n)):
    if n[_] == '1':
      c += 1
  return c

nofinish = [_ for _ in range(N)]
start = []
if N == 1:
  if X[0] == '1':
    a = '0'
  else:
    a = '1'
  ia = int(a, 2)
  start.append(ia)

if N > 1:
  if X[0] == '1':
    a = '0' + X[1:]
  else:
    a = '1' + X[1:]
  ia = int(a, 2)
  start.append(ia)

  for k in range(1, N-1):
    if X[k] == '1':
      a = X[:k] + '0' + X[k+1:]
    else:
      a = X[:k] + '1' + X[k+1:]
    ia = int(a, 2)
    start.append(ia)
  if X[-1] == '1':
    a = X[:-1] + '0'
  else:
    a = X[:-1] + '1'
  ia = int(a, 2) 
  start.append(ia)


for k in range(len(start)):
  for count in range(10*5):
    if start[k] == 0:
      ans[k] = count
      break
    else:
      start[k] = start[k] % popcount(start[k])
  


for k in range(N):
  print(ans[k])

### FIXED CODE ###

N = int(input())
X = input()
ans = [1 for _ in range(N)]
#original 1 count
l = 0
for k in range(N):
  if X[k] == '1':
    l+=1
if l == 0:
  for _ in range(N):
    print(1)
  exit()
if l == 1:
  if X[-1] == '1':
    for _ in range(N-1):
      ans[_] = 2
  else:
    ans[-1] = 2 
  for k in range(N):
    if X[k] =='1':
      ans[k] = 0 
  for _ in range(N):
    print(ans[_])
  exit()


intN = int(X, 2)
N1 = intN %(l-1)
N0 = intN % (l+1)


start = []
if N == 1:
  if X[0] == '1':
    print(0)
    exit()
  else:
    print(1)
    exit()
else:
  s1 = 1
  s0 = 1
  for k in range(N-1, -1, -1):
    if X[k] == '1':      
      ia = (N1 - s1)%(l-1)
    else:
      ia = (N0 + s0)%(l+1)
    start.append(ia)
    s1 = s1*2%(l-1)
    s0 = s0*2%(l+1)
start = start[::-1]
"""
ml = len(bin(l+1))-2
poplist = [0 for _ in range(N)]
t = 1
while t < N + 1:
  t *= 2
  for k in range(t//2, N, t):
    for j in range(t//2):
      if k+j>N-1:
        break
      poplist[k+j] += 1
"""

def popcount(n):
  c = 0
  n = bin(n)[2:]
  for k in range(len(n)):
    if n[k] == '1':
      c+=1
  return c

for k in range(len(start)):
  for count in range(10*5):
    if start[k] == 0:
      ans[k] += count
      break
    else:
      start[k] = start[k] % popcount(start[k])

for k in range(N):
  print(ans[k])
### BUGGY CODE ###

N = int(input())
S = input()
ans = N
for i in range(N):
    C = 0
    former = S[:i]
    latter = S[i + 1:N]
    C = former.count('W') + latter.count('E')
    if C < ans:
        ans = C
print(ans)


### FIXED CODE ###

N = int(input())
S = input()
W = [0] * N
E = [0] * N
for i in range(N):
    if i == 0:
        if S[i] == 'W':
            W[i] = 1
        continue
    if S[i] == 'W':
        W[i] = W[i - 1] + 1
    else:
        W[i] = W[i - 1]
for i in range(N - 1, -1, -1):
    if i == N - 1:
        if S[i] == 'E':
            E[i] = 1
        continue
    if S[i] == 'E':
        E[i] = E[i + 1] + 1
    else:
        E[i] = E[i + 1]
A = []
for i in range(N):
    A.append(W[i] + E[i] - 1)
print(min(A))
### BUGGY CODE ###

import sys
sys.setrecursionlimit(10 ** 9)
input = sys.stdin.readline
from itertools import permutations,  combinations, accumulate
from functools import *
from collections import deque, defaultdict, Counter
from heapq import heapify, heappop, heappush, heappushpop

INF = float('inf')
NIL = '-1'


def is_anag(a, b):
    return Counter(a) == Counter(b)


N = int(input())
S = [input().rstrip() for _ in range(N)]
ans = []

for i, s in enumerate(S, start=1):
    if s == NIL:
        continue
    counter = 1
    for j in range(i, len(S)):
        if S[j] == NIL:
            continue
        if is_anag(s, S[j]):
            counter += 1
            S[j] = NIL
    if counter != 1:
        ans.append(counter)

res = []

for a in ans:
    res.append(a * (a - 1) // 2)
print(sum(res))


### FIXED CODE ###

import sys
sys.setrecursionlimit(10 ** 9)
input = sys.stdin.readline
from itertools import permutations,  combinations, accumulate
from functools import *
from collections import deque, defaultdict, Counter
from heapq import heapify, heappop, heappush, heappushpop

INF = float('inf')
NIL = '-1'


def is_anag(a, b):
    return Counter(a) == Counter(b)


N = int(input())
S = ["".join(sorted(input())) for _ in range(N)]
counter = Counter(S)

ans = 0
for value in counter.values():
    if value >= 2:
        ans += value * (value - 1) // 2

print(ans)

# for i, s in enumerate(S, start=1):
#     if s == NIL:
#         continue
#     counter = 1
#     for j in range(i, len(S)):
#         if S[j] == NIL:
#             continue
#         if is_anag(s, S[j]):
#             counter += 1
#             S[j] = NIL
#     if counter != 1:
#         ans.append(counter * (counter - 1) // 2)

# res = []
#
# for a in ans:
#     res.append(a * (a - 1) // 2)
# print(sum(ans))
### BUGGY CODE ###

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

cnt = 0

b = set(a)

for i in b:
    if a.count(i) > i:
        cnt += a.count(i) - i
    elif a.count(i) == i:
        continue
    else:
        cnt += a.count(i)

print(cnt)

### FIXED CODE ###

from collections import Counter
n = int(input())
a = list(map(int,input().split()))
cnt = Counter(a)

c = 0
for k,v in cnt.items():
    if v >= k:
        c += v-k
    else:
        c += v
print(c)
### BUGGY CODE ###

#!/usr/bin/env python3
#ABC89 D

import sys
import math
import bisect
sys.setrecursionlimit(1000000000)
from heapq import heappush, heappop
from collections import defaultdict
from itertools import accumulate
from collections import Counter
from collections import deque
from operator import itemgetter
from itertools import permutations
mod = 10**9 + 7


h,w,d = map(int,input().split())
a = [list(map(int,input().split())) for _ in range(h)]
q = int(input())
s = [None for _ in range(h*w+1)]
for i in range(h):
    for j in range(w):
        s[a[i][j]] = [i+1,j+1]
for _ in range(q):
    cost = 0
    l,r = map(int,input().split())
    while l + d <= r:
        x,y = s[l]
        n,m = s[l+d]
        cost += abs(x-n)+abs(y-m)
        l += d
    print(cost)


### FIXED CODE ###

#!/usr/bin/env python3
#ABC89 D

import sys
import math
import bisect
sys.setrecursionlimit(1000000000)
from heapq import heappush, heappop
from collections import defaultdict
from itertools import accumulate
from collections import Counter
from collections import deque
from operator import itemgetter
from itertools import permutations
mod = 10**9 + 7


h,w,d = map(int,input().split())
a = [list(map(int,input().split())) for _ in range(h)]
q = int(input())
s = [None for _ in range(h*w+1)]
for i in range(h):
    for j in range(w):
        s[a[i][j]] = [i+1,j+1]
D = [[0]*((h*w+1)//d+1) for _ in range(d)]
for i in range(d+1,h*w+1):
    X,Y = s[i]
    Z,W = s[i-d]
    x = abs(X - Z) + abs(Y - W)
    D[i%d][i//d] = x + D[i%d][i//d-1]
for _ in range(q):
    l,r = map(int,input().split())
    x = D[l%d]
    print(x[r//d] - x[l//d])
### BUGGY CODE ###

X = int(input())
d = 2
while(X%d!=0):
    d+=1
b = -(10**4)
a = b+d
while(X!=((a**5)-(b**5))):
    b+=1
    a=b+d
print(a,b)

### FIXED CODE ###

X = int(input())

A = range(-118,120)
B = range(-118,120)
flag = 0
for a in A:
  for b in B:
    ans = a**5 - b**5
    if ans == X:
      print("{} {}".format(a,b))
      flag=1
      break
  if flag:
    break
### BUGGY CODE ###

MOD=10**9+7
N,M=map(int,input().split())
A=[int(input()) for _ in range(M)]
L=[-1 for _ in range(N)]
if 1 in A:
  L[0] = 0
else:
  L[0] = 1
if N>1:
  if 2 in A:
    L[1] = 0
  else:
    L[1]=L[0]+1
for i in range(2,N):
  if i+1 in A:
    L[i] = 0
  else:
    L[i]=L[i-1]+L[i-2]
print(L[-1]%MOD)

### FIXED CODE ###

MOD=10**9+7
N,M=map(int,input().split())
A=[int(input()) for _ in range(M)]
L=[-1 for _ in range(N)]
p=0
if A == []:
  A=[0]
if 1 == A[p]:
  L[0] = 0
  if p < M-1:
    p +=1
else:
  L[0] = 1
if N>1:
  if 2 == A[p]:
    L[1] = 0
    if p < M-1:
      p+=1
  else:
    L[1]=L[0]+1
for i in range(2,N):
  if i+1 == A[p]:
    L[i] = 0
    if p < M-1:
      p+=1
  else:
    L[i]=L[i-1]+L[i-2]
print(L[-1]%MOD)
### BUGGY CODE ###

#!/usr/bin/env python3
import sys

def main():
    input = sys.stdin.readline  
    H,W = map(int,input().split())
    isVisited = [[-1]*W for _ in range(H)]
    from collections import deque
    queue = deque()

    for i in range(H):
        st = input()
        for j in range(W):
            if st[j] == "#":
                queue.append((i,j,0))

    answer = 0
    a =  [(0,1),(1,0),(-1,0),(0,-1)]
    while queue:
        i,j,count = queue.popleft()

        if isVisited[i][j] == -1:
            isVisited[i][j] = count
            if count>answer:
                answer = count
            for ix,iy in a:
                if 0<=i+ix<H and 0<=j+iy<W:
                    queue.append((i+ix,j+iy,count+1))
 
    print(answer)
    return

if __name__ == '__main__':
    main()


### FIXED CODE ###

#!/usr/bin/env python3
import sys
from collections import deque

def main():
    input = sys.stdin.readline  
    H,W = map(int,input().split())
    isVisited = [[False]*W for _ in range(H)]
    queue = deque()

    for i in range(H):
        st = input()
        for j in range(W):
            if st[j] == "#":
                queue.append((i,j))

    answer = 0
    a =  [(0,1),(1,0),(-1,0),(0,-1)]
    while True:
        nqueue = deque()
        while queue:
            i,j = queue.popleft()

            if not isVisited[i][j]:
                isVisited[i][j] = True
                for ix,iy in a:
                    if 0<=i+ix<H and 0<=j+iy<W:
                        nqueue.append((i+ix,j+iy))
        
        if nqueue:
            answer += 1
            queue = nqueue
        else:
            break
 
    print(max(answer-1,0))
    return

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

K = int(input())
S = input()
X = len(S)
mod = 10**9+7

def cmb(n, r, mod):
    if ( r<0 or r>n ):
        return 0
    r = min(r, n-r)
    return g1[n] * g2[r] * g2[n-r] % mod

mod = 10**9+7 #出力の制限
N = 2*10**6+3
g1 = [1, 1] # 元テーブル
g2 = [1, 1] #逆元テーブル
inverse = [0, 1] #逆元テーブル計算用テーブル

for i in range( 2, N + 1 ):
    g1.append( ( g1[-1] * i ) % mod )
    inverse.append( ( -inverse[mod % i] * (mod//i) ) % mod )
    g2.append( (g2[-1] * inverse[-1]) % mod )

def power(n, r, mod):
    if r == 0: return 1
    if r%2 == 0:
        return power(n*n % mod, r//2, mod) % mod
    if r%2 == 1:
        return n * power(n, r-1, mod) % mod

ans = 0
for i in range(X,K+X+1):
    A = i-X
    B = K+X-i
    ans += cmb(A+X-1,X-1,mod)*power(25,A,mod)*power(26,B,mod)
    ans %= mod
print(ans)


### FIXED CODE ###

K = int(input())
S = input()
X = len(S)
mod = 10**9+7

def cmb(n, r, mod):
    if ( r<0 or r>n ):
        return 0
    r = min(r, n-r)
    return g1[n] * g2[r] * g2[n-r] % mod

mod = 10**9+7 #出力の制限
N = 2*10**6
g1 = [1, 1] # 元テーブル
g2 = [1, 1] #逆元テーブル
inverse = [0, 1] #逆元テーブル計算用テーブル

for i in range( 2, N + 1 ):
    g1.append( ( g1[-1] * i ) % mod )
    inverse.append( ( -inverse[mod % i] * (mod//i) ) % mod )
    g2.append( (g2[-1] * inverse[-1]) % mod )

def power(n, r, mod):
    if r == 0: return 1
    if r%2 == 0:
        return power(n*n % mod, r//2, mod) % mod
    if r%2 == 1:
        return n * power(n, r-1, mod) % mod


A = 0
B = K
temp = cmb(A+X-1,X-1,mod)*power(25,A,mod)
temp %= mod
temp *= power(26,B,mod)
temp %= mod

ans = temp

for i in range(X+1,K+X+1):

    temp *= 25
    temp %= mod
    
    temp *= pow(26, mod-2, mod)
    temp %= mod
    
    temp *= i-1
    temp %= mod
    
    temp *= pow(i-X, mod-2, mod)
    temp %= mod    

    ans += temp
    ans %= mod

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

N,A,B=map(int,input().split())
k=0
while (A+B)*k<N:
  k+=1


if (A+B)*k==N:
  print(A*k)
else:
  if N-(k-1)*(A+B)>A:
    print((k-1)*A+A)
  else:
    print((k-1)*A+N-(k-1)*(A+B))

### FIXED CODE ###

N,A,B=map(int,input().split())
k=N//(A+B)

if (A+B)*k==N:
  print(A*k)
else:
  if N-k*(A+B)>A:
    print(k*A+A)
  else:
    print(k*A+N-k*(A+B))
### BUGGY CODE ###

N = int(input())
ls = list(map(int, input().split(' ')))
rst = 0
for i in range(1, N):
    while ls[i - 1] > ls[i]:
        rst += 1
        ls[i] += 1
print(rst)

### FIXED CODE ###

N = int(input())
ls = list(map(int, input().split(' ')))
rst = 0
for i in range(1, N):
    if ls[i - 1] > ls[i]:
        rst += ls[i - 1] - ls[i]
        ls[i] += ls[i - 1] - ls[i]
print(rst)
### BUGGY CODE ###

n = int(input())
s = input()
q = int(input())
for _ in range(q):
    i,x,y = input().split()
    if (i == "1"):
        x = int(x)
        s = s[:x-1] + y + s[x:]
    if (i == "2"):
        x = int(x)
        y = int(y)
        ans = s[x-1:y]
        st = set(ans)
        print(len(st))

### FIXED CODE ###

def ctoi(x):
    return ord(x)-ord("a")
n = int(input())
s = list(input())
q = int(input())
bit = [[0]*(n+1) for _ in range(26)]

def update(pos,a,x):
    while pos<=n:
        bit[a][pos] += x
        pos += pos&(-pos)

def query(pos):
    ret=[0]*26
    for i in range(26):
        tmp=0
        p=pos
        while p>0:
            tmp+=bit[i][p]
            p-=p&(-p)
        ret[i]=tmp
    return ret

for i in range(n):
    update(i+1,ctoi(s[i]),1)

for _ in range(q):
    flag,a,b = input().split()
    flag=int(flag)
    a=int(a)
    if flag==1:
        if s[a-1]==b:
            continue
        else:
            update(a,ctoi(s[a-1]),-1)
            update(a,ctoi(b),1)
            s[a-1]=b
    else:
        b=int(b)
        c1 = query(b)
        c2 = query(a-1)
        ans = 0
        for i in range(26):
            if c1[i]-c2[i]>0:
                ans += 1
        print(ans)
### BUGGY CODE ###

h, n = map(int, input().split())
a = [0] * n
b = [0] * n
for i in range(n):
    A, B = map(int, input().split())
    a[i] = A
    b[i] = B

ans = [-1] * (h + 1)
ans[0] = 0

for i in range(h):
    if (ans[i] >= 0):
        for j in range(n):
            next = min(h, i + a[j])
            if ans[next] < 0:
                ans[next] = ans[i] + b[j]
            else:
                ans[next] = min(ans[next], ans[i] + b[j])

print(ans[h])

### FIXED CODE ###

h, n = map(int, input().split())
a = [0] * n
b = [0] * n
for i in range(n):
    A, B = map(int, input().split())
    a[i] = A
    b[i] = B

ans = [-1] * (h + 1)
ans[0] = 0

for i in range(h):
    if (ans[i] >= 0):
        for j in range(n):
            next = min(h, i + a[j])
            if ans[next] < 0:
                ans[next] = ans[i] + b[j]
            else:
                ans[next] = min(ans[next], ans[i] + b[j])

print(ans[h])
### BUGGY CODE ###

import bisect
n, m = map(int, input().split())
arr = sorted(list(map(int, input().split())))
ope = []
for i in range(m):
    ope.append(list(map(int,input().split())))
for b,c in ope:
    if arr[0] > c:
        continue
    i = min(bisect.bisect_right(arr,c),b)
    j = bisect.bisect_right(arr[i:],c) + i
    arr = arr[i:j] + [c]*i + arr[j:]
print(sum(arr))

### FIXED CODE ###

import bisect
n, m = map(int, input().split())
arr = sorted(list(map(int, input().split())))
ope = []
d = []
for i in range(m):
    ope.append(list(map(int,input().split())))
ope = sorted(ope,key = lambda x:-x[1])
i = 0
ok = True
for b,c in ope:
    for rep in range(b):
        if i >= n or arr[i] > c:
            ok = False
            break
        arr[i] = c
        i += 1
    if ok:
        continue
    else:
        break
print(sum(arr))