Harryxun/stf_run huggingface dataset:
n=int(input())
cnt=0
for i in range(n):
  List=map(int,input().split())
  cnt += List[1]-List[0]+1
print(cnt)

### FIXED CODE ###

n=int(input())
cnt=0
for i in range(n):
  a,b=map(int,input().split())
  cnt += b-a+1
print(cnt)
N=int(input().split())
list=list(map(int,input().split()))
flg=0
for i in(list):
  if(i%2==0):
    if(i%3!=0 and i%5!=0):
      flg=1
      break
if(flg==0):
  print('APPROVED')
else:
  print('DENIED')

### FIXED CODE ###

N=int(input())
list=list(map(int,input().split()))
flg=0
for i in(list):
  if(i%2==0):
    if(i%3!=0 and i%5!=0):
      flg=1
      break
if(flg==0):
  print('APPROVED')
else:
  print('DENIED')
#-*- coding: utf-8 -*-# 
test = input()
a, b, c = map(int, test.split())  # 変数a,b,cにそれぞれN、A、Bをint型にして入力する　 
x = [] 
for i in range(1,a+1):  # list型の変数xに１からNまでの要素を入れる
    x.append(i)   
len_x = len(x)  # リスト型の変数xの要素数を獲得  
d = 0  # リストの各行の和を入れるための変数 
f = []  # 各行がA以上B以下の要素を入れるための変数 
x = map(str, x)  # リストxの書く要素をstr型に変換  
for i in range(len_x):
     e = x[i]           # xのi番目の要素を抽出
     e = list(e)  # xのi番目の要素を一文字ずつのstr型としてリスト型の変数に入れる
     e = map(int, e)  # xのi番目の要素をint型に変換     
e_number = len(e)  # リスト型の変数eの要素数を取得     
d = 0              # 位の合計の判定用の変数     
for g in range(e_number):
    d += e[g]  # 位の合計     
    if b <= d <= c:  # 位の合計がA以上B以下ならリストfに要素を追加
         f.append(x[i]) answer = 0  # 条件位合う要素の合計を入れる変数 
f = map(int, f) for h in f:  # 要素に合う要素の合計     
answer += h print(answer)    


### FIXED CODE ###

# coding: utf-8
# Your code here!
#-*- coding: utf-8 -*-#
test = input()
a, b, c = map(int, test.split())  # 変数a,b,cにそれぞれN、A、Bをint型にして入力する　
x = []
e = []
for i in range(1,a+1):  # list型の変数xに１からNまでの要素を入れる
    x.append(i)
len_x = len(x)  # リスト型の変数xの要素数を獲得
d = 0  # リストの各行の和を入れるための変数
f = []  # 各行がA以上B以下の要素を入れるための変数
x = map(str, x) # リストxの各要素をstr型に変換
x = list(x)
e_number = 0
for i in range(len_x):
    e = x[i]           # xのi番目の要素を抽出
    e = list(e)  # xのi番目の要素を一文字ずつのstr型としてリスト型の変数に入れる
    e = map(int, e)# xのi番目の要素をint型に変換
    e = list(e)
    e_number = len(e)   # リスト型の変数eの要素数を取得
    d = 0              # 位の合計の判定用の変数
    for g in range(e_number):
        d += e[g-1]  # 位の合計
    if b <= d <= c:  # 位の合計がA以上B以下ならリストfに要素を追加
        f.append(x[i])
answer = 0  # 条件位合う要素の合計を入れる変数
f = map(int, f)
for h in f:
    answer += h  # 要素に合う要素の合計
print(answer)
print x ** 3


### FIXED CODE ###

x = input()
print x*x*x
N = input()
if N % 2 == 0:
    print(N)
else:
    print(N * 2)

### FIXED CODE ###

N = int(input())
if N % 2 == 0:
    print(N)
else:
    print(N * 2)
a=input()
b=input()
c=input()
x=input()
t=0
for i in range(a+1):
  for j in range(b+1):
    for k in range(c+1):
      if 500*i+100*j+50*k==x:
        t+=1
print(t)

### FIXED CODE ###

a=int(input())
b=int(input())
c=int(input())
x=int(input())
t=0
for i in range(a+1):
  for j in range(b+1):
    for k in range(c+1):
      if 500*i+100*j+50*k==x:
        t+=1
print(t)
n=int(input())
a=[int(x) for x in input().split()]
a.sort()
max=a[-1]
dp=[False for _ in range(max+1)]

### FIXED CODE ###

x=[int(x) for x in input().split()]
print(x.index(0)+1)
nums =  list(map(int, input().split()))
 
max_num = max(nums)
min_num = min(nums)
two = [max_num, min_num]
mid_num = list(set(nums) - set(two))
 
two_num = str(max_num) + str(mid_num[0])
print(int(two_num) +int(min_num))

### FIXED CODE ###

num = list(map(int, input().split()))
num.sort(reverse=True)
print(num[0] * 10 + num[1] + num[2])
import psyco 
psyco.full()

n,m = map(int, input().split())

S = [[] for _ in range(n)]

for i in range(n):
    S[i] = list(input())

ans = 0

for i in range(n):
    for j in range(m):
        cnt = 0
        if(S[i][j] == 'O'):
            for k in range(i,0,-1):
                if(S[k][j] == 'X'):
                    break
                cnt += 1
            
            for k in range(i+1,n):
                if(S[k][j] == 'X'):
                    break
                cnt += 1
            
            for k in range(j,0,-1):
                if(S[i][k] == 'X'):
                    break
                cnt += 1
            
            for k in range(j+1,m):
                if(S[i][k] == 'X'):
                    break
                cnt += 1
        ans = max(ans, cnt)

print(ans)

### FIXED CODE ###

n,m = map(int, input().split())

S = [[] for _ in range(n)]

for i in range(n):
    S[i] = list(input())

rows = [[] for _ in range(n)]
cols = [[] for _ in range(m)]

start = [[] for _ in range(n)]
end = [[] for _ in range(n)]

for i in range(n):
    rows[i].append(-1)
    for j in range(m):
        if(S[i][j] == '#'):
            rows[i].append(j)
    rows[i].append(m)

    l = 0
    r = 1
    cnt = 0

    for j in range(m):
        if(S[i][j] != '#'):
            start[i].append(rows[i][r] - rows[i][l])
        else:
            start[i].append(0)
        if(j == rows[i][r]):
            l = r
            r = r + 1
ans = 0
for i in range(m):
    cols[i].append(-1)

    for j in range(n):
        if(S[j][i] == '#'):
            cols[i].append(j)
    cols[i].append(n)

    l = 0
    r = 1
    cnt = 0

    for j in range(n):
        if(S[j][i] != '#'):
            end[j].append(cols[i][r] - cols[i][l])
            # ans = max(ans, start[j][i], end[j][i])
        else:
            end[j].append(0)
        if(j == cols[i][r]):
            l = r
            r = r + 1
        



for i in range(n):
    for j in range(m):
        # if(S[i][j] != '#'):
            ans = max(ans, start[i][j] + end[i][j])

print(ans - 3)
INT_MAX=10**11+7
MOD=10**9+7
def INPUT():return list(int(i) for i in input().split())
def LIST_1D_ARRAY(n):return [0 for _ in range(n)]
def LIST_2D_ARRAY(m,n):return [[0 for _ in range(n)]for _ in range(m)]
#=======================================================================
h1,s1,h2,s2=INPUT()
while(h1>0 and h2>0):
    h2-=s1
    if h2<=0:
        print("Yes")
        break
    h1-=s2
    if h1<=0:
        print("No")
        break
        


### FIXED CODE ###

INT_MAX=10**11+7
MOD=10**9+7
def INPUT():return list(int(i) for i in input().split())
def LIST_1D_ARRAY(n):return [0 for _ in range(n)]
def LIST_2D_ARRAY(m,n):return [[0 for _ in range(n)]for _ in range(m)]
#=======================================================================
h1,s1,h2,s2=INPUT()
while(h1>0 and h2>0):
    h2-=s1
    if h2<=0:
        print("Yes")
        break
    h1-=s2
    if h1<=0:
        print("No")
        break
S = input()
K = int(input())
s_list = list(map(int, list(S)))

for k in range(len(S)):
    if s_list[k] != 1:
        flag = True
        break

if flag:
    print(s_list[k])
else:
    print(1)
    

### FIXED CODE ###

S = input()
K = int(input())
s_list = list(map(int, list(S)))

flag = False
for k in range( min(len(S), K) ):
    if s_list[k] != 1:
        flag = True
        break

if flag:
    print(s_list[k])
else:
    print(1)
S=list(input())
N=len(S)
def main():
  ans=0
  i=0
  while len(S)>0 :
    if (S[i]==0 and S[i+1]==1) or (S[i]==1 and S[i+1]==0):
      S.remove(S[i:i+2])
      ans+=1
    else:
      ans=ans
      i+=1
  print(ans)
main()

### FIXED CODE ###

S=input()
N=len(S)
a=S.count('0')
b=S.count('1')
t=min(a,b)
print(2*t)
n,m = map(int,input().split())
h = list(map(int,input().split()))

l = [1] * N

for i in range(M):
  A,B = map(int,input().split())
  if h[A-1] > h[B-1]:
    l[B - 1] = 0
  elif H[A - 1] < H[B - 1]:
    l[A - 1] = 0
  elif H[A - 1] == H[B - 1]:
    l[A - 1], l[B - 1] = 0, 0
print(l.count(1))


### FIXED CODE ###

N, M = map(int, input().split())
H = list(map(int, input().split()))
l = [1] * N
for i in range(M):
    A, B = map(int, input().split())
    if H[A - 1] > H[B - 1]:
        l[B - 1] = 0
    elif H[A - 1] < H[B - 1]:
        l[A - 1] = 0
    elif H[A - 1] == H[B - 1]:
        l[A - 1], l[B - 1] = 0, 0
print(l.count(1))
N, K = map(int, input().split())
ar = list(map, input().split())

count = 0
for n in ar:
    if n >= K:
        count += 1

print(count)


### FIXED CODE ###

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

count = 0
for i in range(N):
    if ar[i] >= K:
        count += 1

print(count)
import numpy as np
import math
while True:
    n= int(input())
    if n == 0:
        break
    a=list(map(float,input().split())
    m=np.mean(a)
    s=0
    for i in a:
        s+=(i-m)**2
    s/=n
    print("{0:.8f}".format(math.sqrt(s)))

### FIXED CODE ###

while True:
    n = int( input() )
    if n==0:
        break
    a=list(map(int, input().split()))
    m=sum(a)/n
    s=0
    for i in a:
        s+=(i-m)**2
    print( ( s/n)**0.5 )
A,B = map(int,input().split())
for i in range(1,10**5):
  if i%A == 0 and i%B == 0:
    ans = i
    break
  else:
    i += 1
print(ans)

### FIXED CODE ###

from fractions import gcd
A,B = map(int,input().split())
lcm = A * B // gcd(A, B)
print(lcm)
from collections import deque
import sys
input = sys.stdin.readline
H , W , M = map(int,input().split())
h = [0]*M
w = [0]*M
for i in range(M):
  h[i] , w[i] = map(int,input().split())
G1 = deque([0]*H)
G2 = deque([0]*W)
for i in range(M):
  temp = h[i] - 1
  G1[temp] += 1
for  i in range(M):
  temp = w[i] - 1
  G2[temp] += 1
G3 = [[h[i] - 1 , w[i] - 1] for i in range(M)]
M1 = max(G1)
M2 = max(G2)
M1L = []
M2L = []
for i in range(H):
  if G1[i] == M1:
    M1L.append(i)
for j in range(W):
  if G2[j] == M2:
    M2L.append(j)
c = 0
for i in M1L:
  for j in M2L:
    if [i,j] not in G3:
      c = 1
      break
  if c ==1:
    break
if c == 1:
  print(M1 + M2)
else:
  print(M1 + M2 - 1)

### FIXED CODE ###

import math
N ,X , T = map(int,input().split())
print(T*math.ceil(N/X))
N = int(input())
A = [0 for i in range(N)]
for i in range(N):
    A[i] = list(map(int,input().split()))

A.sort()
print(A)

### FIXED CODE ###


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


B = sorted(A, key=lambda x: x[1], reverse=True)

C = sorted(B, key=lambda x: x[0])

for i in range(N):
    print(int(C[i][2]))
n = int(input())
s = input()

posDevide = 1
maxMatchWordNum = 0

while posDevide < N:
        arrayNum = 1
        mutchWordNum = 0
        while arrayNum <=  posDevide:
                matchWordNum = matchWordNum + 1 if  bool( s.count[ arrayNum - 1 ], posDevide, N-1 ) else matchWordNum
                arrayNum + 1
        end
        maxMatchWordNum = matchWordNum if matchWordNum > maxMatchWordNum else maxMatchWordNum
        posDevide + 1
end

print(maxMatchWordNum)

### FIXED CODE ###

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

posDevide = 1
maxMatchWordNum = 0

while posDevide <=  N - 1:
        arrayNum = 0
        matchWordNum = 0
        while arrayNum < posDevide:
                if arrayNum  == S.find( S[ arrayNum ], 0, posDevide):
                        matchWordNum = matchWordNum + 1 if  bool( S.count( S[ arrayNum ], posDevide, N )) else matchWordNum

                arrayNum += 1

        maxMatchWordNum = matchWordNum if matchWordNum > maxMatchWordNum else maxMatchWordNum
        posDevide += 1

print(maxMatchWordNum)
n=int(input())
water=list(map(int,input().split()))
x=[]
temp=0
for i in range(1,n,2):
    temp+=water[i]
x.append(sum(water)-2*temp)
for j in range(n-1):
    x.append(2*water[j]-x[-1])
res=map(str,x)
print(' '.join(res))

### FIXED CODE ###

s=input()
h=set()
for i in range(0,len(s)):
	h.add(s[i])
if(len(h)==2):
	print("Yes")
else:
	print("No")
S = input()

max_S = 10**9 + 7

N_Q = S.count("?")
N_C = S.count("C")

t_A = 0
t_Q = 0
if(S[0:1] == "C"):
    t_C = N_C - 1
else:
    t_C = N_C

S_list = [{"bA": t_A, "bQ": t_Q, "aC": t_C, "aQ": N_Q - t_Q}]
for i in range(1, len(S)):
    if(S[i - 1:i] == "A"):
        t_A += 1
    elif(S[i - 1:i] == "?"):
        t_Q += 1

    ba_dic = {}
    ba_dic["bA"] = t_A
    ba_dic["bQ"] = t_Q
    if(S[i:i + 1] == "?"):
        ba_dic["aQ"] = N_Q - t_Q - 1
    else:
        ba_dic["aQ"] = N_Q - t_Q
    if(S[i:i + 1] == "C"):
        t_C -= 1
    ba_dic["aC"] = t_C

    S_list.append(ba_dic)

ans = 0
for i in range(len(S)):
    if(S[i:i + 1] == "A" or S[i:i + 1] == "C"):
        continue

    bA = S_list[i]["bA"]
    bQ = S_list[i]["bQ"]
    aC = S_list[i]["aC"]
    aQ = S_list[i]["aQ"]

    Q_0 = int(3**(bQ + aQ))
    if(Q_0 == 1):
        Q_1 = 0
        Q_2 = 0
    elif(Q_0 == 3):
        Q_1 = 1
        Q_2 = 0
    else:
        Q_1 = Q_0 / 3
        Q_2 = Q_1 / 3
    ans += Q_0 * bA * aC + bQ * aQ * Q_2 + Q_1 * (bA * aQ + bQ * aC)
    ans = ans % max_S

print(ans)

### FIXED CODE ###

S = input()

d = [0, 0, 0, 1]

max_ans = 10**9 + 7

for c in reversed(S):
    # print(c, d)
    m = [c == "A", c == "B", c == "C", c == "?"]
    if(m[3] is True):
        tmp = 3
    else:
        tmp = 1

    for j in range(3):
        d[j] = (tmp * d[j] + int(m[j] or m[3]) * d[j + 1]) % max_ans
    d[3] = (tmp * d[3]) % max_ans

print(d[0])
from fractions import Fraction

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


def search(r, c):
    for _ in range(b):
        print("0" * a + "1" * (w - a))
    for _ in range(b, H):
        print("1" * a + "0" * (w - a))
    return True


def solve():
    if a == 0 and b == 0:
        for _ in range(h):
            print("0" * w)
        return True
    if b == 0:
        for _ in range(h):
            print("0" * a + "1" * (w - a))
        return True
    if a == 0:
        for _ in range(b):
            print("0" * w)
        for _ in range(h - b):
            print("1" * w)
        return True
    if Fraction(w, h) == Fraction(a, b):
        for r in range(h):
            for c in range(w):
                if c // a == r // b:
                    print("1", end="")
                else:
                    print("0", end="")
            print()
        return True
    return search()


if not solve():
    print("No")


### FIXED CODE ###

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

for _ in range(b):
  print("0" * a + "1" * (w - a))
for _ in range(b, h):
  print("1" * a + "0" * (w - a))
k = int(input())

if k == 0:
  print(0)
else:
  even = k//2
  if k%2==0:
    odd = k-1
  else
    odd = k
  print(str(even*odd))


### FIXED CODE ###

k = int(input())

if k == 0:
  print(0)
else:
  if k%2==0:
    even = k
    odd = k-1
  else:
    even = k - 1
    odd = k
  print(str((even//2)*((odd+1)//2)))
a,b,c,d=map(int, input().split())
print(min(a,b) + min(c,d))

### FIXED CODE ###

a,b,c,d=[int(input()) for i in range(4)]

print(min(a,b) + min(c,d))
H,W=map(int,input().split())
S=[input() for i in [0]*H]
M=[[-1]*W for _ in [0]*H]
def dfs(i,j,k):
    M[i][j]=k
    s=S[i][j]
    if i+1<H and M[i+1][j]==-1 and s!=S[i+1][j]:
        dfs(i+1,j,k)
    if i-1>0 and M[i-1][j]==-1 and s!=S[i-1][j]:
        dfs(i-1,j,k)
    if j+1<W and M[i][j+1]==-1 and s!=S[i][j+1]:
        dfs(i,j+1,k)
    if j-1>0 and M[i][j-1]==-1 and s!=S[i][j-1]:
        dfs(i,j-1,k)
k=0
for i in range(H):
    for j in range(W):
        if M[i][j]==-1:dfs(i,j,k);k+=1
ds={}# #
dd={}# .
for i in range(H):
    for j in range(W):
        m=M[i][j]
        if S[i][j]=='#':ds[m]=ds.get(m,0)+1
        else:dd[m]=dd.get(m,0)+1
r=0
for i in range(k):
    r += ds.get(i,0)*dd.get(i,0)
print(r)

### FIXED CODE ###

import collections
H,W=map(int,input().split())
S=[input() for i in [0]*H]
M=[[-1]*W for _ in [0]*H]
k=0
for y in range(H):
    for x in range(W):
        if M[y][x]!=-1:continue #visited
        M[y][x]=k
        Q=collections.deque()
        Q.append((y,x))
        while len(Q)>0:
            i,j=Q.popleft()
            s=S[i][j]
            if i+1<H and M[i+1][j]==-1 and s!=S[i+1][j]:
                M[i+1][j]=k
                Q.append((i+1,j))
            if i-1>=0 and M[i-1][j]==-1 and s!=S[i-1][j]:
                M[i-1][j]=k
                Q.append((i-1,j))
            if j+1<W and M[i][j+1]==-1 and s!=S[i][j+1]:
                M[i][j+1]=k
                Q.append((i,j+1))
            if j-1>=0 and M[i][j-1]==-1 and s!=S[i][j-1]:
                M[i][j-1]=k
                Q.append((i,j-1))
            #print(k,M,Q)
        k+=1
ds={}
dd={}
for i in range(H):
    for j in range(W):
        m=M[i][j]
        if S[i][j]=='#':ds[m]=ds.get(m,0)+1
        else:dd[m]=dd.get(m,0)+1
r=0
for i in range(k):
    r += ds.get(i,0)*dd.get(i,0)
print(r)
import math
X=int(input())
if X==2:
  print('2')
  exit()
else:
  l=list()
  x=math.sqrt(X)
  key=math.ceil(x)
  if X<=50000:
    for i in range(X,2*X):
      l.append(i)
  else:
    for i in range(X,100000):
      l.append(i)
    
for n in range(2,key+1):
  for x in l:
    if x%n==0:
      l.remove(x)
print(l[0])

### FIXED CODE ###

import math
X=int(input())
if X==2:
  print('2')
  exit()
else:
  l=list()
  x=math.sqrt(X)
  key=math.floor(x)
  for i in range(X,(key+1)**2):
    l.append(i)
    
for n in range(2,key+1):
  for x in l:
    if x%n==0:
      l.remove(x)
print(l[0])
s = input().split(" ")
n = int(s[0])
k = int(s[1])
sp = input().split(" ")
p = [int(pstr) for pstr in sp]

num = 1

for i in range(k - 1):
  if p[i] > p[i + 1]:
    num += 1
    break   
for i in range(n - k):
  if p[i] > p[i + 1] or p[i + k] > p[i + k +1]:
    num += 1

print(num)

### FIXED CODE ###

class MinSlideWindow:
    def __init__(self,p):
        self.pos_list = []
        self.val_list = p
        self.start_idx = 0

    def put(self,pos):
        val = self.val_list[pos]

        while len(self.pos_list) > self.start_idx:
            pos1 = self.pos_list[-1]
            val1 = self.val_list[pos1]
            if val1 >= val:
                del self.pos_list[-1]
            else:
                break
        self.pos_list.append(pos)

    def get(self,pos):
        while len(self.pos_list) > self.start_idx:
            pos1 = self.pos_list[self.start_idx]
            if pos1 <= pos:
                self.start_idx += 1
            else:
                break

    def min(self):
        pos1 = self.pos_list[self.start_idx]
        val1 = self.val_list[pos1]
        return val1

class MaxSlideWindow:
    def __init__(self,p):
        self.pos_list = []
        self.val_list = p
        self.start_idx = 0
        
    def put(self,pos):
        val = self.val_list[pos]

        while len(self.pos_list) > self.start_idx:
            pos1 = self.pos_list[-1]
            val1 = self.val_list[pos1]
            if val1 <= val:
                del self.pos_list[-1]
            else:
                break
        self.pos_list.append(pos)

    def get(self,pos):
        while len(self.pos_list) > self.start_idx:
            pos1 = self.pos_list[self.start_idx]
            if pos1 <= pos:
                del self.pos_list[self.start_idx]
            else:
                break

    def max(self):
        pos1 = self.pos_list[self.start_idx]
        val1 = self.val_list[pos1]
        return val1




s = input().split(" ")
n = int(s[0])
k = int(s[1])
sp = input().split(" ")
p = [int(pstr) for pstr in sp]
num = 1
ident = True
rv_pos = -1

minw = MinSlideWindow(p)
maxw = MaxSlideWindow(p)

for i in range(k - 1):
    if p[i] > p[i + 1]:
        rv_pos = i
        ident = False
    
for i in range(k-1):
    minw.put(i)
    maxw.put(i)

for i in range(1,n - k + 1):
    
    maxw.put(i + k - 2)
    minw.put(i + k - 2)
    maxw.get(i-1)
    minw.get(i-1)

    """    
    for j in range(k - 1):
        if p[i + j] > p[i + j +1]:
            break
    else:
        if not ident:
            ident = True
            num += 1
        continue
    """
    if p[i + k - 2] > p[i + k - 1]:
        rv_pos = i + k - 2
        

    
    if rv_pos < i:
        if not ident:
            ident = True
            num += 1
        continue
            

    if p[i - 1] > minw.min() or p[i + k - 1] < maxw.max():
        num += 1

    
print(num)
N = int(input())
A = list(map(int, input().split())
B = list(map(int, input().split())
C = list(map(int, input().split())

sum = 0
for n in range(N):
       sum += B[A[n]]
       if n > 0:
         if A[n]-1 == A[n-1]:
         	sum += C[A[n-1]]
print(sum)

### FIXED CODE ###

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

sum = 0
for n in range(N):
       sum += B[A[n]-1]
       if n > 0:
         if A[n]-1-1 == A[n-1]-1:
         	sum += C[A[n-1]-1]
print(sum)
N = int(input())
a = [int(i) for i in input().split()]
a = a.sort(reverse=True)

for i in range(N):
  suma[3*N-2*(i+1)])
ans = sum(array)
print(ans)


### FIXED CODE ###

N = int(input())
a = [int(i) for i in input().split()]
a.sort(reverse=True)

ans = sum(a[2*i-1] for i in range(1,N+1))
print(ans)
N, M = map(int, input().split())
list = list(map(int, input().split()))
m=0
for i in range (0, len(list)):
	m=m+list[i]
if N-m>=0:
print(N-m)
elif N-m<0:
print(0)

### FIXED CODE ###

R=input()
R=int(R)
print(R*2*3.14)
n,k=map(int,input().split())
h=list(int,input().split())
ans=n
for i in h:
    if i<k:
        ans-=1
print(ans)


### FIXED CODE ###

n,k=map(int,input().split())
h=list(map(int,input().split()))
ans=n
for i in h:
    if i<k:
        ans-=1
print(ans)
print(input()[:1]+str(len()-2)+input()[-1:])


### FIXED CODE ###

S=input()
print(S[:1]+str(len(S)-2)+S[-1:])
a,b,c = map(int, input().split())
if a==b==c:
  print(1)
elif a==b/=c:
  print(2)
elif a==c/=b:
  print(2)
elif c==b/=a:
  print(2)
else:
  print(3)

### FIXED CODE ###

a,b,c = map(int, input().split())
if a==b==c:
  print(1)
  exit()
if a==b:
  print(2)
elif a==c:
  print(2)
elif b==c:
  print(2)
else:
  print(3)
import sys


def parallelism(x1, y1, x2, y2, x3, y3, x4, y4):
    if x1 == x2 or x3 == x4:
        return x1 == x2 and x3 == x4
    elif y1 == y2 or y3 == y4:
        return y1 == y2 and y3 == y4
    else:
        return ((y2 - y1) / (x2 - x1)) == ((y4 - y3) / (x4 - x3))



#input_file = open(sys.argv[1], "r")

#lines = input_file.readlines()
lines = sys.stdin.readlines()
lines.pop(0)

for line in lines:
    x1, y1, x2, y2, x3, y3, x4, y4 = tuple(map(float, line.split(' ')))
    if parallelism(x1, y1, x2, y2, x3, y3, x4, y4):
        print "YES"
    else:
        print "NO"

### FIXED CODE ###


import sys


def parallelism(x1, y1, x2, y2, x3, y3, x4, y4):
    if x2 - x1 == 0.0 or x4 - x3 == 0.0:
        return x2 - x1 == 0.0 and x4 - x3 == 0.0
    else:
        return ((y2 - y1) / (x2 - x1)) == ((y4 - y3) / (x4 - x3))


#lines = sys.stdin.readlines()
#lines.pop(0)

for i in range(input()):
    x1, y1, x2, y2, x3, y3, x4, y4 = tuple(map(float, raw_input().split(' ')))
    if parallelism(x1, y1, x2, y2, x3, y3, x4, y4):
        print "YES"
    else:
        print "NO"
l = list[map(int,input().split())]
if (10*l[1]+l[2])%4==0:
  print('YES')
else:
  print('NO')

### FIXED CODE ###

l = list(map(int,input().split()))
if (10*l[1]+l[2])%4==0:
  print('YES')
else:
  print('NO')
from sys import setrecursionlimit
setrecursionlimit(10 **7)
n = "0"+input()
N = len(n)
#num:それまでに何枚使ったか
#keta:何桁目まで確認したか（上の桁から数えて)
def oturi(num,keta):
    one_push = num + 10-int(n[keta])+1#前の桁で一つ多い分
    no_push = num + int(n[keta])
    if keta == N-1:
        return min(one_push,no_push)
    num = min(one_push,no_push)
    return oturi(num,keta+1)
print(oturi(0,0))

### FIXED CODE ###

n = "0" + input() # 文字列として受け取り
N = len(n)
plus = 1
just = 0
for i in range(1,N):
    #前の桁がplusだった場合の最低枚数を計算する
    plus_plus = plus+10-(int(n[i])+1)#この桁も１枚多く払う
    plus_just = plus+10-int(n[i])#この桁はちょうど払う
    #前の桁はちょうど払っていた場合
    just_plus = just+1+int(n[i])#この桁は１枚多く払う
    just_just = just+int(n[i])#この桁もちょうど払う
    
    plus = min(plus_plus,just_plus)
    just = min(just_just,plus_just)

#最後の桁は1枚余分に払う必要がない
print(just)
from math import atan, degrees


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

if a * b / 2 * a < x:
    res = (a ** 3) / (2 * ((a ** 2) * b - x))
else:
    res = 2 * x / (a * b * b)

res = degrees(atan(1 / res))
print(res)


### FIXED CODE ###

import math

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

if 2*x<=a*a*b:
    p1=a*b*b
    p2=2*x
else:
    p1=2*(a*a*b-x)
    p2=a*a*a

sit=math.atan(p1/p2)
print(math.degrees(sit))