Harryxun/stf_run huggingface dataset:
import math
from collections import Counter

K = int(input())

memo = {frozenset((i, j)): math.gcd(i, j) 
        for i in range(1, K+1) for j in range(i, K+1)}

counter = Counter([memo[frozenset((i, j))] 
                   for i in range(1, K+1) for j in range(1, K+1)])

total = 0
for i in range(1, K+1):
  for value, count = counter.items():
    total += memo[frozenset((i, value))] * count
    
print(total)

### FIXED CODE ###

import math
from collections import Counter

K = int(input())

memo = {frozenset((i, j)): math.gcd(i, j) 
        for i in range(1, K+1) for j in range(i, K+1)}

counter = Counter([memo[frozenset((i, j))] 
                   for i in range(1, K+1) for j in range(1, K+1)])

total = 0
for i in range(1, K+1):
  for value, count in counter.items():
    total += memo[frozenset((i, value))] * count
    
print(total)
import sys
from heapq import *
H,O=[],[]
for e in sys.stdin:
 t=e[1]
 if'n'==t:heappush(H,-int(e[7:]))
 elif'x'==t:O+=[-heappop(H)]
print('\n'.join(map(str,O)))


### FIXED CODE ###

import sys
from heapq import*
H=[]
O=[]
for e in sys.stdin:
 if'i'==e[0]:heappush(H,-int(e[7:]))
 elif't'==e[2]:O+=[-heappop(H)]
 else:print('\n'.join(map(str,O)))
resolve()

def resolve():
    N,M = map(int, input().split())

    if N == M:
        print('Yes')
    else:
        print('No')

### FIXED CODE ###

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

if N == M:
    print('Yes')
else:
    print('No')
a,op,b = [i for i in input().split()]
a=int(a)
b=int(b)

error = ['?','=','!']
if op == '+' :
  print(a+b)
elif op == '-':
  print(a-b)
elif op == '*':
  print(a*b)
elif op == '/':
  if b == 0 :
    print('error')
  else:
    print(int(a/b))
elif op in error:
  print('error')
 

### FIXED CODE ###

import math
a,b = [int(i) for i in input().split()]
avg=math.ceil((a+b)/2)
print(avg)
n = input()
list = [int(i) for i in input().split()]

for i in range(n):
    if list[i] %2 == 0:
        if list[i]%3 == 0 or list[i] %5 == 0:
            continue
        else:
            print("DENIED")
            break
else:
    print("APPROVED")


### FIXED CODE ###

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

for i in range(n):
    if list[i] %2 == 0:
        if list[i]%3 == 0 or list[i] %5 == 0:
            continue
        else:
            print("DENIED")
            break
else:
    print("APPROVED")
if input() == "Sunny":
  print("Cloudy")
elif input() == "Cloudy":
  print("Rainy")
elif input() =="Rainy":
  print("Sunny")


### FIXED CODE ###

s = input()
if s == "Sunny":
  print("Cloudy")
elif s == "Cloudy":
  print("Rainy")
else:
  print("Sunny")
import itertools
import numpy as np
from scipy.special import comb

mod = 998244353

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

# DP = [[0]*N for _ in range(N)]
# DP[0][0] = M

# DP = []


# for n in range(1,N):
# 	for k in range(N):
# 		if k==0:
# 			DP[n][k] = DP[n-1][k]*(M-1) % mod
# 		else:
# 			DP[n][k] = (DP[n-1][k]*(M-1) + DP[n][k-1]) % mod

# ans = sum(DP[N-1][:(K+1)]) % mod
# print(ans)

ans = 0
for k in range(K+1):
	ans += comb(N-1, k)*(M-1)**(N-k-1) % mod

print(int(ans*M) % mod)

### FIXED CODE ###

MOD = 998244353
MAX = 510000
fac = [1,1] # factorial
finv = [1,1] # inverse of factorial
inv = [None, 1] # inverse

def comb_init():
	for i in range(2, MAX):
		fac.append(fac[i-1] * i % MOD)
		inv.append(MOD - inv[MOD % i] * (MOD//i) % MOD)
		finv.append(finv[i-1] * inv[i] % MOD)

def inverse_mod(a):
	""" Calculate inverse of the integer in a modulo MOD """
	return pow(a, MOD-2, MOD)

def comb_mod(n, r):
	""" Calculate nCr modulo MOD. """
	if n < r: return 0
	if n < 0 or r < 0: return 0
	return fac[n]* (finv[r]*finv[n-r] % MOD) % MOD

def solve(n, m, k):
	ans = 0
	for k in range(K+1):
		ans = (ans + m*(comb_mod(n-1,k)*pow(m-1, n-k-1, MOD) % MOD) % MOD) % MOD
	return ans

comb_init()
N, M, K = map(int, input().split())
print(solve(N, M, K))
n=int(input())
a=list(map(int,input().split()))
b=[]

suc=0
for i in range(n-1):
  if a[i] >= a[i+1]:
    suc += 1
  else:
    b.append(suc)
    suc=0
if i==n-2:
    b.append(suc)
print(max(b))


### FIXED CODE ###

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

suc=0
for i in range(n-1):
  if a[i] >= a[i+1]:
    suc += 1
  else:
    b.append(suc)
    suc=0
b.append(suc)
print(max(b))
import math

N = int(input())

predict_price1 = math.floor((N)  / 1.08)  # 整数で計算,切り捨て処理
predict_price2 = math.ceil(N+1)  / 1.08)  # 整数で計算,切り上げ処理

if predict_price1 == predict_price2:
    print(predict_price1)
else:
    print(":(")   

### FIXED CODE ###

import math

N = int(input())

if math.floor(math.floor((N) / 1.08) * 1.08) == N:
    print(math.floor((N) / 1.08))
elif math.floor(math.floor((N+1) / 1.08) * 1.08) == N:
    print(math.floor((N+1) / 1.08))
else:
    print(":(")
import math
import bisect


prime = [2,3,5,7,11,13,17,19]
for i in range(prime[-1]+2,100,2):

    x = int( math.sqrt(i) )
    x += 1 if x%2 == 0 else 0

    found = False
    for p in prime:
        if p>x:
            break;

        if i % p == 0:
            found = True
                
    if not found:
        prime.append(i)

#print(prime)


q = int(input())
for _ in range(q):
    l, r = map(int,input().split())
    l += 1 if l%2 == 0 else 0

#    print((l,r))

    ans = 0
    for i in range( l , r+1, 2):

        #si = bisect.bisect_left(prime,i)
        xi = bisect.bisect_right(prime, i)
        yi = bisect.bisect_right(prime, (i+1)//2)
        ans += 1 if prime[xi-1] == i and prime[yi-1] == (i+1)//2 else 0

    print(ans)

### FIXED CODE ###


n = int(input())


csf =  [tuple(map(int,input().split())) for _ in range(n-1)]

# print(csf)

for i in range(n-1):

    ans = csf[i][0] + csf[i][1]

    for j in range(i+1,n-1):
        here = csf[j]
        
        ans = max(ans,here[1])
        
        rm = ans % here[2]
        if rm != 0:
            ans += here[2] - rm
            
        ans += here[0]

#        print(ans)
    print(ans)

print(0)
n,m,x = map(int,input().split())
a = [0]*n
for i in range(n):
    a[i] = list(map(int,input().split()))
    
import itertools
data = list(range(n))
r = n
cc = list(itertools.permutations(data, r))

count = 0
ans = 10**7
for s in cc:
    count = 0
    sw = [0]*n
    for j in range(len(s)):
        
        for i in range(m):
            sw[i] += a[s[j]][i+1]
        count += a[s[j]][0]
        q = 1
        for k in range(m):
            if sw[k] < x:
                q = 0
                break
        if q == 1:
            ans = min(ans,count)
if ans == 10**7:
    print(-1)
else:
    print(ans)


### FIXED CODE ###

n,m,x = map(int,input().split())
a = [0]*n
for i in range(n):
    a[i] = list(map(int,input().split()))
ans = 10**7
for i in range(2**n):
    count = 0
    sw = [0]*m
    for j in range(n):
        if (i>>j)&1:
            count += a[j][0]
            for k in range(m):
                sw[k] += a[j][k+1]
    q = 1
    for L in range(m):
        if sw[L] < x:
            q = 0
            break
    if q == 1:
        ans = min(ans,count)
if ans == 10**7:
    print(-1)
else:
    print(ans)
nCr = {}
def cmb(a, b):
    if a == 0 or a == b: return 1
    if a == 1: return b
    if (a,b) in nCr: return nCr[(a,b)]
    nCr[(a,b)] = cmb(a-1,b) + cmb(a-1,b-1)
    return nCr[(a,b)]
n = int(input())
h = list(map(int, input().split()))
def triangle(n,h):
    x = cmb(n, 3)
    for i in range(0,n-2):
        for j in range(i+1,n-1):
            for k in range(j+1, n):
                if h[i] >= h[j] + h[k] or h[j] >= h[i] + h[k] or h[k] >= h[j] + h[i]:
                    x = x - 1
    return x
print(triangle(n,h))

### FIXED CODE ###

import bisect
N = int(input())
#ソートしておく
L = sorted(list(map(int, input().split())))
ans = 0
 
#短い2辺を総当たりで選択
for i in range(N - 2):
  for j in range(i + 1, N - 1):
    #小さい順に並べた時の成立条件
    # l1 + l2 > l3
    l12 = L[i] + L[j]
    #l2の隣から　l12以下のところまで全部が対象、成立しない場合
    #ans += max(bisect.bisect_left(L, l12) - j - 1, 0)
    ans += bisect.bisect_left(L, l12) - j - 1
print(ans)
K = int(input())
N = 50
num = [i for i in range(N)]
for i in range(N):
    num[i] += N//K
r = N%K
for _ in range(r):
    head = num.pop(0)
    for i in range(N-1):
        num[i] += 1
    num.append(head+N)
print(N)
print(*num)


### FIXED CODE ###

K = int(input())
N = 50
num = [i for i in range(N)]
for i in range(N):
    num[i] += K//N
r = K%N
for i in range(r):
    num[i] += N
    for j in range(N):
        if j != i:
            num[j] -= 1
print(N)
print(*num)
s=map(str, input().split())
t=map(str, input().split())
c = 0
for i in range(3):
  if s[i] == t[i]:
    c = c + 1
print(c)

### FIXED CODE ###

s = input()
t = input()
c=0
if s[0]==t[0]:
  c = c + 1

if s[1]==t[1]:
  c = c + 1

if s[2]==t[2]:
  c = c + 1
  
print(c)
new_str, num, string = "", int(input()), input().split(" ")
for x in range(0, num):
    new_str += string[0][x] + string[1][x]
print(new_str)

### FIXED CODE ###

new_str, num, string = "", int(input()), input().split(" ")
for x in range(0, num):
    new_str += string[0][x] + string[1][x]
print(new_str)
l = [int(i) for i in input()]
ans = 0
for j in l:
    if 0 < l[j] % 10:
        ans += (l[j] % 10 + 1) * 10
    else:
        ans += l[j]
print(ans)

### FIXED CODE ###

l = [int(input()) for _ in range(5)]
ans = 0
m = 0
for i in l:
    if i % 10 != 0:
        p = 10 - i % 10
    else:
        p = 0
    ans += i + p
    m = max(m, p)
print(ans - m)
s=input()
l=[]
for i in s:
    if i=='0':
        l.append('0')
    elif i=='1':
        l.append('1')
    elif i=='B':
        l.pop()
    
for i in l:
    print(i,end='')

### FIXED CODE ###

s = input()

r = ""
for c in s:
    if c == "B":
        r = r[:-1]
    else:
        r += c
print(r)
N, K = [int(_) for _ in input().split()]
AB = [[int(_) for _ in input().split()] for i in range(N - 1)]

from collections import defaultdict

v = defaultdict(set)

for a, b in AB:
    v[a].add(b)
    v[b].add(a)

r = [0] * (N + 1)
M = 10**9+7

def check(n, b, p):
    r[n] = K - b - p
    #print("check:", n, r[n])
    b = 0
    for x in v[n]:
        if r[x] == 0:
            check(x, b, min(p + 1, 2))
            b += 1

check(1, 0, 0)

#print(r)

result = 1
for i in range(N):
    result = result * r[i + 1] % M

print(result)


### FIXED CODE ###

N, K = [int(_) for _ in input().split()]
AB = [[int(_) for _ in input().split()] for i in range(N - 1)]

from collections import defaultdict

v = defaultdict(set)

for a, b in AB:
    v[a].add(b)
    v[b].add(a)

M = 10**9+7

import sys
sys.setrecursionlimit(100001)

result = 1

def check(n, b, p):
    global result
    result = result * max(K - b - p, 0) % M
    #print("check:", n, r[n])
    np = min(p + 1, 2)
    for b, x in enumerate(v[n]):
        v[x].remove(n)
        check(x, b, np)

check(1, 0, 0)

print(result)
s=sorted(set(input()))
ro='abcdefghijklmnopqrstuvwxyz'
if len(s)==len(ro):
    print('None')
else:
    for i in range(len(ro)):
        if s[i]!=ro[i]:
            print(ro[i])
            break

### FIXED CODE ###

s=input()
s=list(set(s))

A=[]
for i in range(97,123):
    A.append(chr(i))


for i in range(len(A)):
    if A[i] in s:
        continue
    else:
        print(A[i])
        exit()

print("None")
from itertools import accumulate

N, K = map(int, input().split())
p = list(map(int, input().split()))

p = list(accumulate(p))

ans = 0
for i in range(N - K):
    ans = max(ans, p[i + K]-p[i])

ans = (ans + K) / 2

print(ans)

### FIXED CODE ###

s, t = input().split()
a, b = map(int, input().split())
u = input()

if s==u:
    a = a-1
if t==u:
    b = b-1

print(a, b)
n, m = map(int, input().split())

l, r = map(int, input().split())


def check(i, l, r):
    if i == m:
        return r - l + 1
    l_, r_ = map(int, input().split())
    nl = max(l, l_)
    nr = min(r, r_)
    i += 1
    return check(i, nl, nr)


print(check(1, l, r))


### FIXED CODE ###

n, m = map(int, input().split())
l, r = map(int, input().split())
li = []


for _ in range(m - 1):
    l_, r_ = map(int, input().split())
    l = max(l, l_)
    r = min(r, r_)


print(max(r - l + 1, 0))
def find(x,ones):
    total = 0
    n = len(x)
    for i in range(n):
        total += int(x[i])*pow(2,n-i-1,ones)
        total %= ones

    return total

def solve(x,mod):
    if mod == 0:
        return 0
    x %= mod
    moves = 1
    while x != 0:
        x = x%(bin(x)[2:].count('1'))
        moves += 1

    return moves

def main():
    n = int(input())
    x = input()
    ones = x.count('1')
    less = find(x,ones-1)
    more = find(x,ones+1)
    for i in range(n):
        if x[i] == '0':
            print(solve(more+pow(2,n-i-1,ones+1),ones+1))
        else:
            print(solve(less-pow(2,n-i-1,ones-1),ones-1))


main()


### FIXED CODE ###

def find(x,ones):
    if ones == 0:
        return 0
    total = 0
    n = len(x)
    for i in range(n):
        total += int(x[i])*pow(2,n-i-1,ones)
        total %= ones

    return total

def solve(x,mod):
    x %= mod
    moves = 1
    while x != 0:
        x = x%(bin(x)[2:].count('1'))
        moves += 1

    return moves

def main():
    n = int(input())
    x = input()
    ones = x.count('1')
    less = find(x,ones-1)
    more = find(x,ones+1)
    for i in range(n):
        if x[i] == '0':
            print(solve(more+pow(2,n-i-1,ones+1),ones+1))
        else:
            if ones-1 == 0:
                print(0)
            else:
                print(solve(less-pow(2,n-i-1,ones-1),ones-1))


main()
s = input()
flg = True
if(s[0] != "A"):
    flg = False
if(s[2:-1].count("C")!=1):
    flg = False
for i in range(1, len(s)):
    if(s[i] == "C" and i !=len(s)-1):
        continue
    if(s[i].isupper()):
        flg = False

print("AC" if Flg else "WA")

### FIXED CODE ###

s = input()

if(s[0] == "A" and s.count("A") == 1):
    if(s[2:len(s)-1].count("C") == 1 and s.count("C") == 1):
        s = s.replace("C", "")
        s = s.replace("A", "")
        if(s.islower()):
            print("AC")
        else:
            print("WA")
    else: 
        print("WA")
else:
    print("WA")
import numpy as np
from bisect import *
n, m = map(int, input().split())
a, b, c = zip(*(map(int, input().split()) for _ in range(n)))
d, e, f = zip(*(map(int, input().split()) for _ in range(m)))
x = sorted(set(c + e + f))
y = sorted(set(a + b + d))
h = len(y)-1
w = len(x)-1
def tx(i):
    return bisect(x, i)-1
def ty(i):
    return bisect(y, i)-1
u = np.ones((h+1, w))
for d, e, f in zip(d, e, f):
    d, e, f = ty(d), tx(e), tx(f)
    u[d, e:f] = false
l = np.ones((h, w+1))
for a ,b, c in zip(a, b, c):
    a, b, c = ty(a), ty(b), tx(c)
    l[a:b, c] = false
s = np.outer(np.diff(y), np.diff(x)) 
i = bisect(y, 0)-1
j = bisect(x, 0)-1
s = [(i,j)]
v = set()
r = 0
while s:
    i, j = s.pop()
    if (i,j) in v:
        continue
    v.add((i,j))
    if not (0<=i<h and 0<=j<w):
        print('inf')
        break
    r += s[i][j]
    if u[i][j]:
        s.append((i-1,j))
    if u[i+1][j]:
        s.append((i+1,j))
    if l[i][j]:
        s.append((i,j-1))
    if l[i][j+1]:
        s.append((i,j+1))
else:
    print(r)

### FIXED CODE ###

import numpy as np
from numba import njit
from bisect import *
n, m = map(int, input().split())
A, B, C = zip(*(map(int, input().split()) for _ in range(n)))
D, E, F = zip(*(map(int, input().split()) for _ in range(m)))
X = sorted(set(C))
Y = sorted(set(D))
H = len(Y)-1
W = len(X)-1
def TX(i):
    return bisect(X, i)-1
def TY(i):
    return bisect(Y, i)-1
U = np.ones((H+1, W))
for d, e, f in zip(D, E, F):
    #d, e, f = TY(d), TX(e), TX(f)
    d = TY(d)
    e = bisect_left(X, e)
    f = bisect_right(X, f)-1
    U[d, e:f] = False
L = np.ones((H, W+1))
for a ,b, c in zip(A, B, C):
    #a, b, c = TY(a), TY(b), TX(c)
    c = TX(c)
    a = bisect_left(Y, a)
    b = bisect_right(Y, b)-1
    L[a:b, c] = False
S = np.outer(np.diff(Y), np.diff(X))
@njit
def dfs(i, j):
    s = [(i,j)]
    v = np.zeros((H,W))
    r = 0
    while s:
        i, j = s.pop()
        if not (0<=i<H and 0<=j<W):
            return -1
        if v[i,j]:
            continue
        v[i,j] = True
        r += S[i,j]
        if U[i,j]:
            s.append((i-1,j))
        if U[i+1,j]:
            s.append((i+1,j))
        if L[i,j]:
            s.append((i,j-1))
        if L[i,j+1]:
            s.append((i,j+1))
    return r
r = dfs(TY(0), TX(0))
print('INF' if r<0 else r)
n, a = [ int(v) for v in input().split() ]
num_list = [ int(v) for v in input().split() ]
max_num = max(num_list)
field = [ [ 0 for i in range(max_num*n+1) ] for i in range(n+1) ]
field[0][0] = 1

b = num_list[0]
for i in num_list:
    for j in range(n,0,-1):
        for k in range(max_num*n+1):
            if k >= i:
                field[j][k] += field[j-1][k-i]



ans = 0
for i in range(1,n+1):
    ans += field[i][a*i]
print(ans)


### FIXED CODE ###


n, a = [ int(v) for v in input().split() ]
num_list = [ int(v) for v in input().split() ]
max_num = max(num_list)
field = [ [ 0 for i in range(5000) ] for i in range(n+1) ]
field[0][0] = 1

b = num_list[0]
for i in num_list:
    for j in range(n,0,-1):
        for k in range(5000):
            if k >= i:
                field[j][k] += field[j-1][k-i]



ans = 0
for i in range(1,n+1):
    ans += field[i][a*i]
print(ans)
import math

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

if K == 0:
  C = 0
else:
  C = int(math.log2(K + 1))
L = [[0 for i in range(44)] for j in range(C + 1)]

for i in A:
  for j in range(len(L[0])):
    if i % 2 == 1:
      i -= 1
      L[0][j] += 1
    if i == 0:
      break
    i /= 2
for i in range(1, C + 1):
  for j in range(44):
    L[i][j] = L[0][j]

x = pow(2, C)
T = [K for i in range(C + 1)]
for i in range(C, -1, -1):
  for j in range(C + 1):
    if T[j] >= x:
      if j != i and L[j][i] <= N / 2:
        L[j][i] = N - L[j][i]
        T[j] -= x
  x //= 2

Ans = [0 for i in range(C + 1)]
x = 1
for i in range(44):
  for j in range(C + 1):
    Ans[j] += L[j][i] * x
  x *= 2

print(max(Ans))



### FIXED CODE ###

import math
def main():
  N, K = list(map(int, input().split()))
  A = list(map(int, input().split()))
 
  if K == 0:
    C = 0
  else:
    C = int(math.log2(K + 1))
  L = [[0 for i in range(44)] for j in range(C + 1)]
 
  for i in A:
    for j in range(len(L[0])):
      if i % 2 == 1:
        i -= 1
        L[0][j] += 1
      if i == 0:
        break
      i /= 2
  for i in range(1, C + 1):
    for j in range(44):
      L[i][j] = L[0][j]
 
  x = pow(2, C)
  T = [K for i in range(C + 1)]
  for i in range(C, -1, -1):
    for j in range(C + 1):
      if T[j] >= x:
        if j != i and L[j][i] <= N / 2:
          L[j][i] = N - L[j][i]
          T[j] -= x
    x //= 2
 
  Ans = [0 for i in range(C + 1)]
  x = 1
  for i in range(44):
    for j in range(C + 1):
      Ans[j] += L[j][i] * x
    x *= 2
 
  print(max(Ans))

main()
n, a, b = map(int, input().split())
period = a+b
times = n//period
k = n%period
n =  a if k >a else k
print(times*a + n)
---------------------------
a, b = [int(x) for x in input().split()]
 
if (b < a):
    temp = b
    b = a
    a = temp

### FIXED CODE ###

n, a, b = map(int, input().split())
period = a+b
times = n//period
k = n%period
n =  a if k >a else k
print(times*a + n)
n, m, l = [int(i) for i in input().split()]

A = []
B = []
C = []

for ni in range(n):
    A.append([int(i) for i in input().split()])

for mi in range(m):
    B.append([int(i) for i in input().split()])

for i in range(n):
    C.append([])
    for j in range(l):
        C[i].append(0)
        for k in range(m):
            C[i][j] += A[i][k] * B[k][j]

for ni in range(l):
    print(" ".join([str(s) for s in C[ni]]))

### FIXED CODE ###

n, m, l = [int(i) for i in input().split()]

A = []
B = []
C = []

for ni in range(n):
    A.append([int(i) for i in input().split()])

for mi in range(m):
    B.append([int(i) for i in input().split()])

for i in range(n):
    C.append([])
    for j in range(l):
        C[i].append(0)
        for k in range(m):
            C[i][j] += A[i][k] * B[k][j]

for ni in range(n):
    print(" ".join([str(s) for s in C[ni]]))
while True:
    N,M = map(int,input().strip().split(" "))
    if [N,M] == [0,0]:
        break
    L = []
    S = 0 #Sが襲われる回数の期待値
    for i in range(N):
        l = list(map(int,input().strip().split(" ")))
        l.reverse() #ソートするとき具合がわるいので[P,D]の順に入れ替え
        L.append(l)
        S = S + l[0]*l[1]
    L.sort()
    j = N
    while M > 0:
        if M >= L[j-1][1]:
            S = S - L[j][0]*L[j][1]
            M = M - L[j][1]
            j = j - 1
        else:
            S = S - L[j][0]*M
            M = M - L[j][1]
    print(S)


### FIXED CODE ###

while True:
    N,M = map(int,input().strip().split(" "))
    if [N,M] == [0,0]:
        break
    L = []
    S = 0
    for i in range(N):
        l = list(map(int,input().strip().split(" ")))
        l.reverse()
        L.append(l)
        S = S + l[0]*l[1]
    L.sort()
    for j in range(0,N):
        t = N-j-1
        if M >= L[t][1]:
            S = S - L[t][0]*L[t][1]
            M = M - L[t][1]
        elif 0 < M:
            S = S - L[t][0]*M
            M = M - L[t][1]
    print(S)
N = int(input())
#A = list(map(int,input().split(' ')))

    print((N+1)//2)


### FIXED CODE ###

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

print((N+1)//2)
ni = lambda: int(ns())
na = lambda: list(map(int, input().split()))
ns = lambda: input()

A,B,C,D = na()
from functools import reduce


def gcd(*numbers):
    """
    Return the greatest common divisor of 1 or more integers
    Examples
    --------
    >>> gcd(5)
    5
    >>> gcd(30, 40)
    10
    >>> gcd(120, 40, 60)
    20
    """
    # Am I terrible for doing it this way?
    from math import gcd

    return reduce(gcd, numbers)



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

    return reduce(lcm, numbers, 1)
ee = lcm(C,D)
A = A-1
cc = B//C
dd = B//D
ansb = cc+dd-B//ee

ansa = A//C+A//D-A//ee

print(B-A-(ansb-ansa))


### FIXED CODE ###

import fractions
na = lambda: list(map(int, input().split()))
A,B,C,D = na()
ee = (C * D)//fractions.gcd(C, D)
A = A-1
cc = B//C
dd = B//D
ansb = cc+dd-B//ee
ansa = A//C+A//D-A//ee
print(B-A-(ansb-ansa))
n=int(input())
h=list(map(int,input().split()))
h[0]-=1
for i in range(n-1):
    if h[i]>h[i+1]:
        h[i]-=1
    print(h)
for i in range(n-1):
    if h[i]>h[i+1]:
        print("No")
        quit()
print("Yes")

### FIXED CODE ###

n=int(input())
h=list(map(int,input().split()))
h[0]-=1
for i in range(1,n-1):
    if h[i]>h[i+1] or h[i]>h[i-1]:
        h[i]-=1
for i in range(n-1):
    if h[i]>h[i+1]:
        print("No")
        quit()
print("Yes")
import sys
sys.setrecursionlimit(10**5)

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

cost_list={}

def cost(k):
    if k==0:
        result=0
        cost_list[k]=result
    elif k==1:
        result=abs(H[1]-H[0])
        cost_list[k]=result
    elif k in cost_list:
        result=cost_list[k]
    else:
        result=min(cost(k-1)+abs(H[k]-H[k-1]),cost(k-2)+abs(H[k]-H[k-2]))
        cost_list[k]=result
    
    return result

print(cost(N-1))



### FIXED CODE ###

import sys
sys.setrecursionlimit(10**6)

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

cost_list=[0 for _ in range(N)]

cost_list[1]=abs(H[1]-H[0])

if N==2:
    print(cost_list[1])

else:
    for k in range(2,N):
        cost_list[k]=min(cost_list[k-1]+abs(H[k]-H[k-1]),cost_list[k-2]+abs(H[k]-H[k-2]))

    print(cost_list[N-1])
# coding: utf-8
 
N  = int(input())
sum = 0
 
for i in range(N):
    if ( i % 3 != 0):
        if (i % 5! = 0):
           sum += i
 
print(sum)

### FIXED CODE ###

#coding: utf-8
 
N  = int(input())
sum = 0
 
for i in range(N+1):
    if ( i % 3 != 0):
        if (i % 5 != 0):
           sum += i
 
print(sum)