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

N=int(input())
A=list(map(int,input().split()))
bin_A=[bin(c) for c in A]
flags=[True]*N

count=0
for keta in range(60):
   count_0=0
   count_1=0
   for i in range(N):
      if flags[i]:
         if bin_A[i][-1*(keta+1)]=="b":
            count_0+=1
            flags[i]=False
         elif bin_A[i][-1*(keta+1)]=="0":
            count_0+=1
         else:
            count_1+=1
      elif flags[i]==False:
         count_0+=1
   count+=count_0*count_1*2**keta

print(count%(10**9+7))

### FIXED CODE ###

N=int(input())
A=list(map(int,input().split()))
bin_A=[bin(c) for c in A]
flags=[True]*N

count=0
for keta in range(60):
   count_0=0
   count_1=0
   for i in range(N):
      if flags[i]:
         if bin_A[i][-1*(keta+1)]=="b":
            count_0+=1
            flags[i]=False
         elif bin_A[i][-1*(keta+1)]=="0":
            count_0+=1
         else:
            count_1+=1
      elif flags[i]==False:
         count_0+=1
   count+=count_0*count_1*2**keta

print(count%(10**9+7))
### BUGGY CODE ###

n, m = map(int, input().split())
ab = [list(map(int, input().split())) for i in range(m)]
contain_one = [[i, j] for i, j in ab if i == 1]
string_ab = [str(k)+str(l) for k, l in ab]

for a, b in contain_one:
    if str(b)+str(n) in set(string_ab):
        print("POSSIBLE")
        exit()
else:
    print("IMPOSSIBLE")


### FIXED CODE ###

n, m = map(int, input().split())
ab = []
for i in range(m):
    a, b = map(int, input().split())
    if a == 1:
        ab.append(b)
    if b == n:
        ab.append(a)

if len(ab) != len(set(ab)):
        print("POSSIBLE")
        exit()
else:
    print("IMPOSSIBLE")
### BUGGY CODE ###

from collections import defaultdict
from functools import lru_cache
itl = lambda: list(map(int, input().strip().split()))


def solve():
    N = int(input())
    nums = itl()
    S = input().strip()
    @lru_cache(None)
    def dp(i, target):
        if i == N:
            return (target == 0)
        if S[i] == '0':
            return dp(i + 1, target ^ nums[i]) or dp(i + 1, target)
        else:
            return dp(i + 1, target ^ nums[i]) and dp(i + 1, target)
    return 0 if dp(0, 0) else 1


T = int(input())
for _ in range(T):
    print(solve())

### FIXED CODE ###

from collections import defaultdict
itl = lambda: list(map(int, input().strip().split()))


def solve():
    N = int(input())
    nums = itl()
    S = input().strip()

    basis = []
    for i in range(N - 1, -1, -1):
        v = nums[i]
        for b in basis:
            v = min(v, v ^ b)
        if v:
            if S[i] == '1':
                return 1
            basis.append(v)
    return 0    


T = int(input())
for _ in range(T):
    print(solve())
### BUGGY CODE ###

S=str(input())
s=[]
for i in range(len(S)):
  s.append(S[i])
c=0
f=True
while f:
  if s==['1']*len(s) or s==['0']*len(s) or s==[]:
    f=False
  else:
    for i in range(len(s)-1):
      if s[i:i+2]==['0','1'] or s[i:i+2]==['1','0']:
        s.remove(s[i])
        s.remove(s[i])
        c+=1
        break
print(2*c)

### FIXED CODE ###

S=str(input())
s=[]
c1=0
c0=0
for i in range(len(S)):
  s.append(S[i])
  if S[i]=='0':
    c0+=1
  else:
    c1+=1
print(2*min(c0,c1))
### BUGGY CODE ###

K, S = map(int, input().split())
count = 0
 
for x in range(int(K)+1):
  for y in range(int(K)+1):
    z = int(S) - x - y
    if 0 <= z and z <= int(K):
    	count += 1
 
print(count)

### FIXED CODE ###

K, S = map(int, input().split())
count = 0
 
for x in range(K+1):
  for y in range(K+1):
    z = S - x - y
    if 0 <= z and z <= K:
    	count += 1
print(count)
### BUGGY CODE ###

import itertools

N = int(input())
S = input()

l = range(N)
ans = set()

for comb in itertools.combinations(l, 3):
    x, y, z = comb
    s = S[x] + S[y] + S[z]
    ans .add(s)
    
    if len(ans) >= 10 ** 3:
        break
        
print(len(ans))

### FIXED CODE ###

N = int(input())
S = input()
ans = 0
for i in range(1000):
    key = str(i)
    key = "0"*(3-len(key)) + key

    cur = 0
    for s in S:
        if s == key[cur]:
            cur += 1
        if cur >= 3:
            ans += 1
            break

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

N = int(input())

ans = 0
for n in range(1, N):
    ans += n
print(ans)


### FIXED CODE ###

N = int(input())

print((N-1)*(1+N-1)//2)
### BUGGY CODE ###

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

for i in range(1, N+1):
    tmp_list = [a for a in a_list if a == i]
    print(len(tmp_list))



### FIXED CODE ###

N = int(input())
a_list = list(map(int, input().split()))
result_list = [0] * N

for a in a_list:
    result_list[a-1] += 1

result_list_str = [str(i) for i in result_list]
print('\n'.join(result_list_str))
### BUGGY CODE ###

from collections import defaultdict
N = int(input())
a = list(map(int, input().split()))
pow2 = [1]
for i in range(61):
    pow2.append(pow2[-1] * 2)
a = sorted(a, reverse=True)
d = defaultdict(int)
for i in a:
    d[i] += 1


num = 0
for i in range(N):
    for k in range(60):
        if pow2[k] - a[i] != a[i]:
            if d[pow2[k] - a[i]] > 0 and d[a[i]] > 0:
                num += 1
                d[pow2[k] - a[i]] -= 1
                d[a[i]] -= 1
                break
        else:
            if d[a[i]] >= 2:
                num += 1
                d[a[i]] -= 2
                break
print(num)

### FIXED CODE ###

from collections import defaultdict
import sys
input = sys.stdin.readline
N = int(input())
a = list(map(int, input().split()))
pow2 = [1]
for i in range(31):
    pow2.append(pow2[-1] * 2)
a = sorted(a, reverse=True)
d = defaultdict(int)
for i in a:
    d[i] += 1


num = 0
for i in range(N):
    if d[a[i]] == 0:
        continue
    for k in range(30, -1, -1):
        inv = pow2[k] - a[i]
        if inv < 0 or inv > a[i]:
            continue
        if inv != a[i]:
            if d[inv] > 0 and d[a[i]] > 0:
                p = min(d[inv], d[a[i]])
                num += p
                d[inv] -= p
                d[a[i]] -= p
                break
        else:
            if d[a[i]] >= 2:
                num += d[a[i]] // 2
                d[a[i]] %= 2
                break
print(num)
### BUGGY CODE ###

N = int(input())
A = list(map(int,input().split()))
A_ = sorted(A)
ans = []
for i in range(N):
  ans.append(str(A.index(A_[i])+1))
print(' '.join(ans))

### FIXED CODE ###

N = int(input())
A = list(map(int,input().split()))
ans = ['']*N
for id,name in enumerate(A):
  ans[name-1] = str(id+1)
print(' '.join(ans))
### BUGGY CODE ###

# -*- coding: utf-8 -*-
h,n = map(int, input().split())
ab = [list(map(int, input().split())) for _ in range(n)]

inf = 10**9
dp = [[inf]*(h+1) for _ in range(n+1)]
dp[0][0] = 0
for i in range(n):
    for j in range(h+1):
        k = 0
        while ab[i][0]*k<=h:
            d = j+ab[i][0]*k
            dp[i+1][min(h,d)] = min(dp[i+1][min(h,d)], dp[i][j]+ab[i][1]*k)
            k += 1
        d = j+ab[i][0]*k
        dp[i+1][min(h,d)] = min(dp[i+1][min(h,d)], dp[i][j]+ab[i][1]*k)

res = dp[n][h]
print(res)

### FIXED CODE ###

# -*- coding: utf-8 -*-
h,n = map(int, input().split())
ab = [list(map(int, input().split())) for _ in range(n)]

inf = 10**9
dp = [inf]*(h+1)
dp[0] = 0
for i in range(n):
    for j in range(h+1):
        d = min(j+ab[i][0], h)
        dp[d] = min(dp[d], dp[j]+ab[i][1])

res = dp[h]
print(res)
### BUGGY CODE ###

import re

p = 0
class N(int):
    def __add__(self,n):
        return N((int(self) + int(n)) % p)
    def __sub__(self,n):
        return N((int(self) - int(n)) % p)
    def __mul__(self,n):
        return N((int(self) * int(n)) % p)
    def __floordiv__(self,n):
        if not n:
            raise ZeroDivisionError
        return N((int(self)*int(n**(p-2))) % p)

while True:
    s = input()
    p,s = s.split(':')
    p = int(p)
    if not p:
        break
    s = s.replace(' ','')
    try:
        n = eval(re.sub(r'(\d+)',r'N(\1)',s).replace('/','//'))
        print('%s = %s (mod %s)'%(s,n,p))
    except ZeroDivisionError:
        print('NG')

### FIXED CODE ###

import re

p = 0
class N(int):
    def __add__(self,n):
        return N((int(self) + int(n)) % p)
    def __sub__(self,n):
        return N((int(self) - int(n)) % p)
    def __mul__(self,n):
        return N((int(self) * int(n)) % p)
    def __floordiv__(self,n):
        if not n:
            raise ZeroDivisionError
        return self*pow(int(n),p-2,p)

while True:
    s = input()
    p,s = s.split(':')
    p = int(p)
    if not p:
        break
    s = s.replace(' ','')
    try:
        n = eval(re.sub(r'(\d+)',r'N(\1)',s).replace('/','//'))
        print('%s = %s (mod %s)'%(s,n,p))
    except ZeroDivisionError:
        print('NG')
### BUGGY CODE ###

n, m = map(int, input().split())
a = [int(input()) for _ in range(m)]
MOD = 10**9+7
INF = -1
dp = [INF]*(n+1)
if n == 1:
    if 1 in a:
        print(0)
    else:
        print(1)
    exit()

dp[0] = dp[1] = 1

if 0 in a:
    dp[0] = INF
if 1 in a:
    dp[1] = INF

for i in range(2, n+1):
    if i in a:
        dp[i] = INF
        continue
    if dp[i-1] == INF and dp[i-2] == INF:
        break
    elif dp[i-1] == INF or dp[i-2] == INF:
        dp[i] = max(dp[i-1], dp[i-2])
    else:
        dp[i] = dp[i-1]+dp[i-2]
    dp[i] %= MOD


print(dp[n] if dp[n] != INF else 0)

### FIXED CODE ###

n, m = map(int, input().split())
a = [int(input()) for _ in range(m)]
MOD = 10**9+7
INF = MOD-1
dp = [INF]*(n+1)
if n == 1:
    if 1 in a:
        print(0)
    else:
        print(1)
    exit()

dp[0] = dp[1] = 1

if 0 in a:
    dp[0] = INF
if 1 in a:
    dp[1] = INF

for x in a:
    dp[x] = 0

for i in range(2, n+1):
    if dp[i] == 0:
        continue

    if dp[i-1] == INF and dp[i-2] == INF:
        break
    elif dp[i-1] == INF or dp[i-2] == INF:
        dp[i] = max(dp[i-1], dp[i-2])
    else:
        dp[i] = dp[i-1]+dp[i-2]
    dp[i] %= MOD


print(dp[n] if dp[n] != INF else 0)
### BUGGY CODE ###

n = int(input())
a = int(input())
b = int(input())
c = int(input())
d = int(input())
e = int(input())
dic ={0:n,1:0,2:0,3:0,4:0,5:0}
time =0
if n == 10000000007:
    print(5000000008)
    exit()
while sum(dic)>0:
    if dic[5] == n:
        print(time)
        exit()
    if dic[4] > e:
        dic[4] -= e
        dic[5] += e
    else:
        dic[5] += dic[4]
        dic[4] = 0
    
    if dic[3] > d:
        dic[3] -= d
        dic[4] += d
    else:
        dic[4] += dic[3]
        dic[3] = 0
    
    if dic[2] > c:
        dic[2] -= c
        dic[3] += c
    else:
        dic[3] += dic[2]
        dic[2] = 0
    
    if dic[1] > b:
        dic[1] -= b
        dic[2] += b
    else:
        dic[2] += dic[1]
        dic[1] = 0
    
    if dic[0] > a:
        dic[0] -= a
        dic[1] += a
    else:
        dic[1] += dic[0]
        dic[0] = 0
    time += 1

### FIXED CODE ###

n = int(input())
a = int(input())
b = int(input())
c = int(input())
d = int(input())
e = int(input())
time =0
amin = min(a,b,c,d,e)
time=(n//amin+1 if n%amin != 0 else n/amin)+4
print(int(time))
### BUGGY CODE ###

N, K = list(map(int, input().split()))
S = [1 if x=='R' else -1 for x in input()]

for i in range(K):
    l = -1
    prev = S[0]
    for j in range(1, N):
        current = S[j]
        if current != prev:
            l = j
            break
        prev = current
    if l == -1:
        break

    r = N - 1
    prev = S[l]
    for j in range(l+1, N):
        current = S[j]
        if current != prev:
            r = j - 1
            break
        prev = current
    left = S[:l]
    target = S[l:r+1]
    right = S[r+1:]
    target.reverse
    target = [-x for x in target]
    S = left + target + right

S.insert(0, 1)
S.append(-1)
ans = 0
for i in range(N):
    x = S[i+1]
    y = S[i+1+x]
    if x == y:
        ans += 1

print(ans)

### FIXED CODE ###

N, K = list(map(int, input().split()))
S = [1 if x=='R' else -1 for x in input()]
cnt = 0
rule = S[0]
f = False
for i in range(1, N):
    if S[i] != rule:
        f = True
        S[i] *= -1
    else:
        if f:
            f = False
            cnt += 1
    if cnt >= K:
        break

S.insert(0, 1)
S.append(-1)
ans = 0
for i in range(N):
    x = S[i+1]
    y = S[i+1+x]
    if x == y:
        ans += 1

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

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

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

# 1つ目の条件を満たす
first_conditions = r*g*b
# 一つ目の条件は満たすが、2つ目の条件は満たさない
second_condition = 0
sum_ = 0
for i in range(n):
    for j in range(n):
        for k in range(n):
            if i < j and j < k:
                if j-i == k-j and (s[i] != s[j] and s[j] != s[k] and s[i] != s[k]):
                    second_condition += 1
print(first_conditions-second_condition)

### FIXED CODE ###

n = int(input())
s = input()
r_ary = []
g_ary = []
b_ary = []
for i in (s):
    if i == 'R':
        r_ary.append(i)
    elif i == 'G':
        g_ary.append(i)
    elif i == 'B':
        b_ary.append(i)
r = len(r_ary)
g = len(g_ary)
b = len(b_ary)
first_conditions = r*g*b
for i in range(n-2):
    for j in range(i+1,n-1):
        if 2*j-i<n and s[i]!=s[2*j-i] and s[j]!=s[2*j-i] and s[i]!=s[j]:
            first_conditions -= 1
print(first_conditions)
### BUGGY CODE ###

#!/usr/bin/env python3
import sys
from math import log2

ROUND = 10 ** 100
LOG = int(log2(ROUND))

def main():
    #print(LOG)
    S = input()
    N = len(S)
    to = []
    for _ in range(LOG):
        l = [0] * N
        to.append(l)
    
    for i in range(N):
        to[0][i] = i + 1 if S[i] == "R" else i - 1
    
    for i in range(1, LOG):
        for j in range(N):
            to[i][j] = to[i - 1][to[i - 1][j]]

    ans = [0] * N
    for j in range(N):
        ans[to[LOG - 1][j]] += 1

    L = [str(i) for i in ans]
    print(" ".join(L))
    return


if __name__ == '__main__':
    main()

### FIXED CODE ###

#!/usr/bin/env python3
import sys
from itertools import groupby

# RUN LENGTH ENCODING
def rfe_tupple(S: str):
    grouped = groupby(S)
    res = []
    for k, v in grouped:
        res.append((k, str(len(list(v)))))
    return res

def main():
    S = input()
    N = len(S)
    
    now = 0
    compressed = rfe_tupple(S)
    ans = [0] * N
    for lr, i in compressed:
        i = int(i)
        if lr == "R":
            now += i
            ans[now - 1] += i - i // 2
            ans[now] += i // 2
        else:
            ans[now - 1] += i // 2
            ans[now] += i - i // 2
            now += i
    
    L = [str(i) for i in ans]
    print(" ".join(L))
    return

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

N,M=map(int,input().split())
list1=list(map(int,input().split()))
list2=[]
for i in range(M):
  B,C=map(int,input().split())
  list2+=[C]*B
list3=list1+list2
list4=sorted(list3,reverse=True)
list5=list4[:N]
SUM=sum(list5)
print(SUM)


### FIXED CODE ###

N,M = map(int, input().split())
listA = list(map(int, input().split()))
listA.sort()
 
listBC = [list(map(int, input().split())) for i in range(M)]
listBC = sorted(listBC, key=lambda x: x[1], reverse=True)
countB = 0
 
for i in range(M):
  B, C = listBC[i][0], listBC[i][1]
  listA += [C]*B
  countB += B
  if countB >= N:
    break

listA.sort(reverse=True)
print(sum(listA[:N]))
### BUGGY CODE ###

MOD=10**9+7
N=int(input())
A=list(map(int,input().split()))
res=0
bit=[0]*60
for i in range(1,N+1):
    for j in range(60):
        if(A[i-1]>>j&1):
            bit[j]+=1
            res=(res+(2**j)*(i-bit[j]))%MOD
        else:
            res=(res+(2**j)*bit[j])%MOD
print(res)

### FIXED CODE ###

MOD=10**9+7
N=int(input())
A=list(map(int,input().split()))
ans=0
for j in range(60):
    k=2**j
    count=0
    for i in range(N):
        if(A[i]&k):
            ans=(ans+(2**j)*(i-count))%MOD
            count+=1
        else:
            ans=(ans+(2**j)*count)%MOD
print(ans)
### BUGGY CODE ###

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

for i in range(N):
    print(A.count(i+1))

### FIXED CODE ###

N = int(input())
A = list(map(int, input().split()))
bukaninzu_list = N * [0]
for i in range(N-1):
    bukaninzu_list[A[i]-1] += 1

for bukaninzu in bukaninzu_list:    
    print(bukaninzu)
### BUGGY CODE ###

import math
from collections import deque

class UnionFind():
  def __init__(self, n):
    self.seg_tree = [-1 for i in range(n)]
  
  def root(self, i):
    if self.seg_tree[i] < 0:
      return i
    else:
      self.seg_tree[i] = self.root(self.seg_tree[i])
      return self.seg_tree[i]

  def size(self, i):
    return -self.seg_tree[self.root(i)]

  def unite(self, i, j):
    if self.same(i, j):
      return

    if self.size(i) == self.size(j):
      self.seg_tree[self.root(i)] -= self.size(j)
      self.seg_tree[self.root(j)] = self.root(i)
    elif self.size(i) > self.size(j):
      self.seg_tree[self.root(i)] -= self.size(j)
      self.seg_tree[self.root(j)] = self.root(i)
    else:
      self.seg_tree[self.root(j)] -= self.size(i)
      self.seg_tree[self.root(i)] = self.root(j)

  def same(self, i, j):
    return self.root(i) == self.root(j)

def nC2(n):
  return math.factorial(n) / math.factorial(2) / math.factorial(n - 2)

N, M = map(int, raw_input().split())
A = []
B = []
rev_res = []
uf = UnionFind(N)
for _ in range(M):
  a, b = map(long, raw_input().split())
  A.append(a - 1)
  B.append(b - 1)

ans = nC2(N)
for a, b in reversed(zip(A, B)):
  rev_res.append(ans)
  if not uf.same(a, b):
    ans -= uf.size(a) * uf.size(b)
  uf.unite(a, b)

for r in reversed(rev_res):
  print r

### FIXED CODE ###

import math
from collections import deque

class UnionFind():
  def __init__(self, n):
    self.seg_tree = [-1 for i in range(n)]
  
  def root(self, i):
    if self.seg_tree[i] < 0:
      return i
    else:
      self.seg_tree[i] = self.root(self.seg_tree[i])
      return self.seg_tree[i]

  def size(self, i):
    return -self.seg_tree[self.root(i)]

  def unite(self, i, j):
    if self.same(i, j):
      return

    if self.size(i) == self.size(j):
      self.seg_tree[self.root(i)] -= self.size(j)
      self.seg_tree[self.root(j)] = self.root(i)
    elif self.size(i) > self.size(j):
      self.seg_tree[self.root(i)] -= self.size(j)
      self.seg_tree[self.root(j)] = self.root(i)
    else:
      self.seg_tree[self.root(j)] -= self.size(i)
      self.seg_tree[self.root(i)] = self.root(j)

  def same(self, i, j):
    return self.root(i) == self.root(j)

def nC2(n):
  return math.factorial(n) / math.factorial(2) / math.factorial(n - 2)

N, M = map(int, raw_input().split())
A = []
B = []
rev_res = []
uf = UnionFind(N)
for _ in range(M):
  a, b = map(long, raw_input().split())
  A.append(a - 1)
  B.append(b - 1)

ans = N * (N - 1) / 2
for a, b in reversed(zip(A, B)):
  rev_res.append(ans)
  if not uf.same(a, b):
    ans -= uf.size(a) * uf.size(b)
  uf.unite(a, b)

for r in reversed(rev_res):
  print r
### BUGGY CODE ###

# Hello World program in Python
def gcd(a,b):
    if not b: return a
    return gcd(b,a%b)
def lcm(a, b):
    return (a*b) //gcd(a, b)
N = int(raw_input())
A = map(int, raw_input().split())
l = 1
for x in A:
    l = lcm(l, x)
ans, mod = 0, 1000000007
for x in A:
    ans = (ans + l/x) % mod
print(ans)

### FIXED CODE ###

def gcd(a,b):
    if not b: return a
    return gcd(b,a%b)

def lcm(a, b):
    return (a*b)//gcd(a, b)

N = int(input())
A = list(map(int,input().split()))
l = 1
ans, mod = 0, 1000000007

for x in A:
    l = lcm(l, x)

for x in A:
    ans = ans + l//x
print(ans % mod)
### BUGGY CODE ###

from collections import deque
HW = input().split()
H, W = int(HW[0]), int(HW[1])
C = input().split()
Ch, Cw = int(C[0]), int(C[1])
D = input().split()
Dh, Dw = int(D[0]), int(D[1])
route = []
for h in range(H):
    route.append(input())


visited = [[False]*W for x in range(H)]
kouho = deque()
kouho.append([Ch-1, Cw-1])
warpkouho = deque()

def check_walk(a, b):
    if 0 <= a <= H-1 and 0 <= b <= W-1: 
        if visited[a][b] == False and route[a][b] == ".":
            kouho.append([a, b])
def check_warp(a, b, cwarp):
    if 0 <= a <= H-1 and 0 <= b <= W-1:
        if visited[a][b] == False and route[a][b] == ".":
            warpkouho.append([a, b, cwarp+1])

def wizard():
    warp = 1
    while True:
        if len(kouho) != 0:
            tmp = kouho.popleft()
        elif len(warpkouho) != 0:
            tmp = warpkouho.popleft()
            warp = tmp[2]
        else:
            break
        h = tmp[0]
        w = tmp[1]
        if visited[h][w] == False:
            visited[h][w] = warp
            check_walk(h-1, w)
            check_walk(h+1, w)
            check_walk(h, w-1)
            check_walk(h, w+1)
            for n in range(5):
                for m in range(5):
                    check_warp(h-2+n, w-2+m, warp)
        if h == Dh-1 and w == Dw-1:
            print(visited[h][w]-1)
            return
    print(-1)
wizard()

        

### FIXED CODE ###

from collections import deque
HW = input().split()
H, W = int(HW[0]), int(HW[1])
C = input().split()
Ch, Cw = int(C[0]), int(C[1])
D = input().split()
Dh, Dw = int(D[0]), int(D[1])
route = []
for h in range(H):
    route.append(input())

visited = [[False]*W for x in range(H)]
kouho = deque()
kouho.append([Ch-1, Cw-1])
warpkouho = deque()

def check_walk(a, b):
    if 0 <= a <= H-1 and 0 <= b <= W-1: 
        if visited[a][b] == False and route[a][b] == ".":
            kouho.append([a, b])
def check_warp(a, b, cwarp):
    if 0 <= a <= H-1 and 0 <= b <= W-1:
        if visited[a][b] == False and route[a][b] == ".":
            warpkouho.append([a, b, cwarp+1])

def wizard():
    warp = 1
    while True:
        if len(kouho) != 0:
            tmp = kouho.popleft()
        elif len(warpkouho) != 0:
            tmp = warpkouho.popleft()
            warp = tmp[2]
        else:
            break
        h = tmp[0]
        w = tmp[1]
        if visited[h][w] == False:
            visited[h][w] = warp
            check_walk(h-1, w)
            check_walk(h+1, w)
            check_walk(h, w-1)
            check_walk(h, w+1)
            for n in range(5):
                for m in range(5):
                  check_warp(h-2+n, w-2+m, warp)
        if h == Dh-1 and w == Dw-1:
            print(visited[h][w]-1)
            return
    print(-1)
wizard()
### BUGGY CODE ###

import sys

N,A,B = map(int,input().split(' '))

Result = 0
Count_Blue = 0
if 1<=N<=10**18 and A >= 0 and B >= 0 and \
   0< A + B <= 10**18:
    for Count in range(1,10**100+1):
        for i in range(A):
            if Result < N:
                Result = Result + 1
                Count_Blue += 1
            else:
                print(Count_Blue)
                sys.exit()
        Result = Result + 1 * B

        if Result > N:
            print(Count_Blue)
            sys.exit()

### FIXED CODE ###

import sys

N,A,B = map(int,input().split(' '))

Count_Blue = 0
if 1<=N<=10**18 and A > 0 and B >= 0 and \
   0< A + B <= 10**18:
    Add_Blue = 1 * A
    Add_Both = Add_Blue + 1 * B

    q = N // Add_Both
    mod = N % Add_Both
    if mod < Add_Blue:
        Count_Blue = (q *Add_Blue) + mod
    else:
        Count_Blue = (q * Add_Blue) + Add_Blue
    print(Count_Blue)
elif A == 0:
    print(Count_Blue)
### BUGGY CODE ###

N,M = map(int,input().split())
L_list = []
R_list = []
count = 0
M_list = list(range(M))
for i in M_list:
    L,R=map(int,input().split())
    L_list.append(L)
    R_list.append(R)


for i in range(1,N+1):
    for j in M_list:
        if(i >= L_list[j] and i<=R_list[j]):
           
            if j==M-1:
                count+=1
        else:
            break
print(count)

### FIXED CODE ###

N,M = map(int,input().split())
L_list = []
R_list = []
count = 0
min_mn=float('inf')
max_mn=0
for i in range(M):
    L,R=map(int,input().split())
    min_mn = min(min_mn,R)
    max_mn = max(max_mn,L)

for i in range(1,N+1):
    if(i>=max_mn and i<=min_mn):
        count += 1
print(count)