Harryxun/stf_run huggingface dataset:
import numpy as np
a = np.zeros((3,3))
for i in range(3):
  for j in range(3):
    a[i][j] = input()
A = a.T
N = input()
b = np.zeros(N)
for i in range(N):
  b[i] = input()
k = 0
for i in range(N):
  for j in range(3):
    for k in range(3):
      if a[j,k] == b[i]:
        a[j,k] == 0
c = np.array(a[0,0],a[1,1],a[2,2])
d = np.array(a[0,2],a[1,1],a[2,0])
k = 1
for i in range(3):
  if a[i].cumprod * A[i].cumprod == 0:
    k = 0
if c.cumprod * d.cumprod == 0:
  k = 0
if k:
  print('No')
else:
  print('Yes')
  
    

### FIXED CODE ###

a = [input().split() for l in range(3)]
n = int(input())
b = [input() for i in range(n)]
c = [a[0][0],a[1][1],a[2][2]]
d = [a[0][2],a[1][1],a[2][0]]
tate1 = len(set(a[0]) & set(b))
tate2 = len(set(a[1]) & set(b))
tate3 = len(set(a[2]) & set(b))
yoko1 = len(set([x[0] for x in a]) & set(b))
yoko2 = len(set([x[1] for x in a]) & set(b))
yoko3 = len(set([x[2] for x in a]) & set(b))
naname1 = len(set(c) & set(b))
naname2 = len(set(d) & set(b))
bingo = [tate1,tate2,tate3,yoko1,yoko2,yoko3,naname1,naname2]
if 3 in bingo:
  print("Yes")
else:
  print("No")
n = int(input())
a = [int(input()) for i in range(n)]
i = 0
cnt = 1
while a[i]!=2:
        if i == a[a[i]-1]-1:
        print(-1)
        exit()
    i=a[i]-1
    cnt += 1
else:
    print(cnt)

### FIXED CODE ###

n = int(input())
a = [int(input()) for i in range(n)]
cnt = 0
tmp = 0
for i in range(n):
    if a[tmp]==2:
        print(cnt+1)
        exit()
    else:
        tmp =a[tmp]-1
        cnt += 1
else:
    print(-1)
    exit()
# xの逆元は、x*y = 1 mod pとなるようなy
N, K = map(int, input().split())
mod = 10**9 + 7
a = N - K + 1
print(a)
for i in range(K-1):
    a = a * (N - K - i) * (K - (i + 1)) // ((i+2) * (i+1))
    a %= mod
    print(a)



### FIXED CODE ###

from collections import defaultdict
S = input()
D = defaultdict(int)
for s in S:
    D[s] += 1

def main(D):
    if len(D.keys()) != 2:
        return 0
    else:
        for v in D.values():
            if v != 2:
                return 0
    return 1

if main(D):
    print("Yes")
else:
    print("No")
print('YES' if (int(input()) + 1) // 2 > int(input()) else 'NO')

### FIXED CODE ###

n, k = [int(x) for x in input().split()]
if n % 2 == 1:
    ans = 'YES' if (n + 1) / 2 >= k else 'NO'
else :
    ans = 'YES' if n / 2 >= k else 'NO'

print(ans)
"""
in1 = '7 4 4'
in2 = ['1 2', '2 3', '2 5', '6 7', '3 5', '4 5', '3 4', '6 7']
N, K, L = [int(_) for _ in in1.split()]
pqrs = [[int(_) for _ in _.split()] for _ in in2]
"""
N, K, L = map(int, input().split())
pqrs = [[0] * 2] * N
for idx1 in range(N):
    temp = input().sprit()
    pqrs[idx1][0] = temp[0]
    pqrs[idx1][1] = temp[1]

def makeTree(a):
    aT = list(range(N + 1))
    for p, q in a:
        rootp     = getRoot(aT, p)
        rootq     = getRoot(aT, q)
        thisRoot  = max(rootp, rootq, q)
        aT[p]     = thisRoot
        aT[q]     = thisRoot
        aT[rootp] = thisRoot
        aT[rootq] = thisRoot
    return aT

def getRoot(a,i):
    if a[i] == i:
        return i
    else:
        a[i] = getRoot(a, a[i])
        return a[i]

MTree = makeTree(pqrs[0:K])
TTree = makeTree(pqrs[K:])

aRet = []
dRet = {}
for idx1 in range(1, N + 1):
    Comb = (getRoot(MTree, idx1), getRoot(TTree, idx1))
    aRet.append(Comb)
    if Comb in dRet:
        dRet[Comb] += 1
    else:
        dRet[Comb] = 1

print(" ".join([str(dRet[_]) for _ in aRet]))


### FIXED CODE ###

"""
in1 = '7 4 4'
in2 = ['1 2', '2 3', '2 5', '6 7', '3 5', '4 5', '3 4', '6 7']
N, K, L = map(int, in1.split())
pqrs = []
for idx1 in range(K + L):
    temp0, temp1 = map(int, in2[idx1].split())
    pqrs.append([temp0, temp1])
"""

def makeTree(a):
    aT = list(range(N + 1))
    for p, q in a:
        rootp     = getRoot(aT, p)
        rootq     = getRoot(aT, q)
        thisRoot  = max(rootp, rootq, q)
        aT[p]     = thisRoot
        aT[q]     = thisRoot
        aT[rootp] = thisRoot
        aT[rootq] = thisRoot
    return aT

def getRoot(a,i):
    if a[i] == i:
        return i
    else:
        a[i] = getRoot(a, a[i])
        return a[i]

N, K, L = map(int, input().split())
pqrs = []
for idx1 in range(K + L):
    temp0, temp1 = map(int, input().split())
    pqrs.append([temp0, temp1])

MTree = makeTree(pqrs[0:K])
TTree = makeTree(pqrs[K:])

aRet = []
dRet = {}
for idx1 in range(1, N + 1):
    Comb = (getRoot(MTree, idx1), getRoot(TTree, idx1))
    aRet.append(Comb)
    if Comb in dRet:
        dRet[Comb] += 1
    else:
        dRet[Comb] = 1

print(" ".join([str(dRet[_]) for _ in aRet]))
n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
c=list(map(int,input().split()))

def tarou(n,a,b,c):
	manzoku = b[a[0]-1]
	for i in range (1,n):
		manzoku += b[a[i]-1]
		if a[i]-a[i-1] == 1:
				manzoku += c[i]
	print (manzoku)
tarou (n,a,b,c)

### FIXED CODE ###

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

def tarou(n,a,b,c):
	manzoku = b[a[0]-1]
	for i in range (1,n):
		manzoku += b[a[i]-1]
		if a[i]-a[i-1] == 1:
				manzoku += c[a[i]-2]
	print (manzoku)
tarou (n,a,b,c)
a,b = map(float, input().split())
a = int(a)
b_int = int(b)
b_frac = b*100-b*int*100

ans = a*b_int+(a*b_frac)//100
  
print(ans)

### FIXED CODE ###

from decimal import Decimal
a,b = map(float, input().split())
ans = Decimal(str(a)) * Decimal(str(b))

  
print(int(ans))
N,C = list(map(int,input().split()))
D = [ list(map(int,input().split()))  for i in range(C)]
c = [ list(map(int,input().split()))  for i in range(N)]

sep = {0:[0 for i in range(C)],1:[0 for i in range(C)],2:[0 for i in range(C)]}
for i,cx in enumerate(c):
    for j,cy in enumerate(cx):
        sep[(i + j) % 3][cy] + = 1
minimums = [[],[],[]]
for key,values in sep.tems():
    for i in range(C):
        m0 = 0
        am0 = 0
        m1 = 0
        am1 = 1
        deposit = 0
        for j,value in enumerate(values):
            deposit += D[j][i] * valuea
        sep[key].append(deposit)
min0 = min(sep[0])

min1 = min(sep[1])
min2 = min(sep[2])
min3 = min(sep[2])

print(min1 + min2 + min3)


### FIXED CODE ###

# 基本は３で割ったあまり毎に変換コストを計算する.
# a[i][j] i種類目がj色に変わる時のコストと計算し、それの合計のminを取る

import numpy as np
N,C = map(int,input().split())
a = np.zeros((3,C))
D = np.array([ list(map(int,input().split())) for i in range(C)])
c = np.array([ list(map(int,input().split())) for i in range(N)])


for i in range(N):
    for j in range(N):
        a[(i+j)%3] += D[c[i][j]-1]

sum_arr = []
for C1 in range(C):
    for C2 in range(C):
        for C3 in range(C):
            if C1 != C2 and C2 != C3 and C3 != C1:
                sum_arr.append(a[0][C1]+a[1][C2]+a[2][C3])

print(int(min(sum_arr)))
import numpy as np

data = input().split()

for n in range(len(data)):
	data[n] = int(data[n])

W, H, x, y, r = data
theta = np.arange(0, 2 * np.pi + 0.01, 0.01)

k = True

for angle in theta:
	rx = x + np.cos(angle)
	ry = y + np.sin(angle)
	if rx >= 0 and rx <= W and ry >= 0 and ry <= H:
		pass
	else:
		k = False
		break

if k is True:
	print("Yes")
else:
	print("No")

### FIXED CODE ###

data = input().split()

for n in range(len(data)):
	data[n] = int(data[n])

W, H, x, y, r = data

if (r <= x <= W - r) and (r <= y <= H - r):
	print("Yes")
else:
	print("No")
s=input()
abc="abcdefghijklmnopqrstuvwxyz"
if len(s)<26:
  print(s+sorted(list(set(abc)-set(s)))[0])
else:
  x=s[-1]
  Tail=[x]
  count,flag=0,0
  for i in range(2,27):
    if s[-i]<x:
      count=i
      flag=1
      break
    else:
      x=s[-i]
      Tail.append(x)
  t="z"
  for tt in Tail:
    if tt>s[26-count]:
       t=min(t,tt)  
  print(s[:-count]+t if flag==1 else -1)

### FIXED CODE ###

s=input()
abc="abcdefghijklmnopqrstuvwxyz"
if len(s)<26:
  print(s+sorted(list(set(abc)-set(s)))[0])
else:
  x=s[-1]
  Tail=[x]
  count,flag=0,0
  for i in range(2,27):
    if s[-i]<x:
      count=i
      flag=1
      break
    else:
      x=s[-i]
      Tail.append(x)
  t="z"
  if count!=0:
    for tt in Tail:
      if tt>s[26-count]:
        t=min(t,tt)  
  print(-1 if flag==0 else s[:-count]+t)
d = [0, 1, 0, -1]
def f(x, y, n, m):
    if m[x][y] == "#":
        return
    if type(m[x][y]) == type(int()) and m[x][y] <= n:
        return
    if m[x][y] == ".":
        m[x][y] = n
        for i in xrange(4):
            f(x+d[i], y+d[i+1&3], n+1, m)

h, w = map(int, raw_input().split())
m = list()
m.append(["#" for _ in xrange(w+2)])
for _ in xrange(h):
    m.append(["#"]+list(raw_input())+["#"])
m.append(["#" for _ in xrange(w+2)])
dat = len(filter(lambda x:x==".", [i for j in m for i in j]))
f(1, 1, 1, m)
try:
    print dat-m[h][w]
except:
    print -1
for i in m:
    for j in i:
        try:
            print "%2d" % j,
        except:
            print " %s" % j,
    print


### FIXED CODE ###

from Queue import Queue
d = [0, 1, 0, -1]
h, w = map(int, raw_input().split())
m = list()
m.append(["#" for _ in xrange(w+2)])
for _ in xrange(h):
    m.append(["#"]+list(raw_input())+["#"])
m.append(["#" for _ in xrange(w+2)])
dat = len(filter(lambda x:x==".", [i for j in m for i in j]))

q = Queue()
q.put((1,1,1))

while not q.empty():
    xy = q.get()
    if not m[xy[0]][xy[1]] == ".":
        continue
    m[xy[0]][xy[1]] = xy[2]
    for i in xrange(4):
        e = (xy[0]+d[i], xy[1]+d[i+1&3], xy[2]+1)
        if m[xy[0]+d[i]][xy[1]+d[i+1&3]] == ".":
            q.put(e)

try:
    print dat-m[h][w]
except:
    print -1
a,b=map(inr,input().split())
print(max([a+b,a-b,a*b]))

### FIXED CODE ###

a,b=map(int,input().split())
print(max([a+b,a-b,a*b]))
def inserrtionsort(l,n):
  for i in range(1,n):
    v=l[i]
    j=i-1
    while v<l[j] and j>=0:
      l[j+1]=l[j]
      j-=1
    l[j+1]=v
    print(""join(l))
  print("".join(l))
n=list(input())
m=int(input())
inserrtionsort(m,n)


### FIXED CODE ###

def inserrtionsort(l,n):
  for i in range(1,n):
    print(" ".join(l))
    v=l[i]
    j=i-1
    while int(v)<int(l[j]) and j>=0:
      l[j+1]=l[j]
      j-=1
    l[j+1]=v
  print(" ".join(l))
m=int(input())
n=list(input().split())
inserrtionsort(n,m)
from collections import deque, namedtuple
import sys
sys.setrecursionlimit(100000)

class RootedTree:
    def __init__(self, t, n):
        self.t = t
        self.n = n
        self.d = [-1] * n
    def setDepth(self, u, p):
        self.d[u] = p
        if self.t[u].r != -1:
            self.setDepth(self.t[u].r, p)
        if self.t[u].l != -1:
            self.setDepth(self.t[u].l, p + 1)
        return(self.d)
    def getChildren(self, u):
        ret = []
        c = self.t[u].l
        while c != -1:
            ret.append(c)
            c = self.t[c].r
        return(ret)
    def printNode(self, i):
        p_ = self.t[i].p
        d_ = self.d[i]
        c_ = self.getChildren(i)
        if p_ == -1:
            t_ = "root"
        elif len(c_) == 0:
            t_ = "leaf"
        else:
            t_ = "internal node"
        print("node {}: parent = {}, depth = {}, {}, {}".format(i, p_, d_, t_, c_))

if __name__ == '__main__':
    n = int(input().rstrip())
    Node = namedtuple('Node', ['p', 'l', 'r'])
    t = [Node(-1, -1, -1)] * n
    r = -1
    for i in range(n):
        tmp = deque([int(i) for i in input().rstrip().split(" ")])
        v = tmp.popleft()
        d = tmp.popleft()
        for j in range(d):
            c = tmp.popleft()
            if j == 0:
                t[v] = t[v]._replace(l = c)
            else:
                t[l] = t[l]._replace(r = c)
            l = c
            t[c] = t[c]._replace(p = v)
    for i in range(n):
        if (t[i].p == -1):
            r = i
    x = RootedTree(t, n)
    x.setDepth(r, 0)
    for i in range(n):
        x.printNode(i)
    

### FIXED CODE ###

from collections import deque, namedtuple

class RootedTree:
    def __init__(self, t, n):
        self.t = t
        self.n = n
        self.d = [-1] * n

    def setDepth(self, u, p):
        self.t[u] = self.t[u]._replace(d = p)
        for i in self.getChildren(u):
            self.setDepth(i, p + 1)

    def getChildren(self, u):
        ret = []
        c = self.t[u].l
        while c != -1:
            ret.append(c)
            c = self.t[c].r
        return(ret)

    def printNode(self, i):
        p_ = self.t[i].p
        d_ = self.t[i].d
        c_ = self.getChildren(i)
        if p_ == -1:
            t_ = "root"
        elif len(c_) == 0:
            t_ = "leaf"
        else:
            t_ = "internal node"
        print("node {}: parent = {}, depth = {}, {}, {}".format(i, p_, d_, t_, c_))

if __name__ == '__main__':
    n = int(input().rstrip())
    Node = namedtuple('Node', ['p', 'l', 'r', 'd'])
    t = [Node(-1, -1, -1, -1)] * n
    r = -1
    for i in range(n):
        tmp = deque([int(i) for i in input().rstrip().split(" ")])
        v = tmp.popleft()
        d = tmp.popleft()
        for j in range(d):
            c = tmp.popleft()
            if j == 0:
                t[v] = t[v]._replace(l = c)
            else:
                t[l] = t[l]._replace(r = c)
            l = c
            t[c] = t[c]._replace(p = v)
    for i in range(n):
        if (t[i].p == -1):
            r = i
    x = RootedTree(t, n)
    x.setDepth(r, 0)
    for i in range(n):
        x.printNode(i)
n, m, x, y = list(map(int, input().split()))
xs = list(map(int, input().split()))
ys = list(map(int, input().split()))

xs_max = max(xs)
ys_min = min(ys)
flag = True
for xi in range(xs+1, ys_min):
  if x<xi and xi<=y:
    print('No War')
    flag = False
    break
if flag:
  print('War')


### FIXED CODE ###

n, m, x, y = list(map(int, input().split()))
xs = list(map(int, input().split()))
ys = list(map(int, input().split()))

xs_max = max(xs)
ys_min = min(ys)
#print(xs_max, ys_min)
flag = True
for xi in range(xs_max+1, ys_min+1):
  #print(xi)
  if x<xi and xi<=y:
    print('No War')
    flag = False
    break
if flag:
  print('War')
a = int(raw_input())
b = int(raw_input())

if a == 1
	a = a + 13

if b == 1
	b = b + 13

if a > b:
	print("Alice")
elif a < b:
	print("Bob")
else:
	print("Draw")


### FIXED CODE ###

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

if a == 1:
	a = 14

if b == 1:
	b = 14

if a > b:
	print "Alice"
elif a < b:
	print "Bob"
else:
	print "Draw"
# Fast IO (only use in integer input)

import os,io
input=io.BytesIO(os.read(0,os.fstat(0).st_size)).readline

# Fenwick Tree to Calculate Sum

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

MaxLength = N
FenwickTree = []

CurLen = MaxLength
while CurLen != 0:
    FenwickTree.append([0] * CurLen)
    CurLen //= 2

Depth = len(FenwickTree)

def addElem(n,index): # add n to an element in index
    for j in range(Depth):
        FenwickTree[j][index] += n
        index //= 2

def firstNSum(n): # Return the sum of the first n elements (0 to n-1)
    nCpy = n
    summ = 0
    depthCur = 0
    while nCpy != 0:
        if nCpy % 2 != 0:
            summ += FenwickTree[depthCur][nCpy - 1]
        nCpy //= 2
        depthCur += 1
    return summ

c = list(map(int,input().split()))
firstLocColor = [-1] * N
ans = [-1] * Q
queries = []
for i in range(Q):
    l,r = map(int,input().split())
    queries.append((l,r,i))
queries.sort(key = lambda x: x[1])
queryIndex = 0
for i in range(N):
    # Update the Fenwick tree to count ith element
    if firstLocColor[c[i] - 1] == -1:
        addElem(1,i)
        firstLocColor[c[i] - 1] = i
    else:
        addElem(-1,firstLocColor[c[i] - 1])
        addElem(1,i)
        firstLocColor[c[i] - 1] = i
    
    # get query
    while queryIndex < Q and queries[queryIndex][1] - 1 <= i:
        if queries[queryIndex][1] - 1 == i:
            ans[queries[queryIndex][2]] = firstNSum(queries[queryIndex][1]) - firstNSum(queries[queryIndex][0] - 1)
        queryIndex += 1

for elem in ans:
    print(elem)

### FIXED CODE ###

# Fast IO (only use in integer input)

import os,io
input=io.BytesIO(os.read(0,os.fstat(0).st_size)).readline

# Fenwick Tree to Calculate Sum

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

MaxLength = 2 * N
FenwickTree = []

CurLen = MaxLength
while CurLen != 0:
    FenwickTree.append([0] * CurLen)
    CurLen //= 2

Depth = len(FenwickTree)

def addElem(n,index): # add n to an element in index
    for j in range(Depth):
        FenwickTree[j][index] += n
        index //= 2

def firstNSum(n): # Return the sum of the first n elements (0 to n-1)
    nCpy = n
    summ = 0
    depthCur = 0
    while nCpy != 0:
        if nCpy % 2 != 0:
            summ += FenwickTree[depthCur][nCpy - 1]
        nCpy //= 2
        depthCur += 1
    return summ

c = list(map(int,input().split()))
firstLocColor = [-1] * N
ans = [-1] * Q
queries = []
for i in range(Q):
    l,r = map(int,input().split())
    queries.append((l,r,i))
queries.sort(key = lambda x: x[1])
queryIndex = 0
for i in range(N):
    # Update the Fenwick tree to count ith element
    if firstLocColor[c[i] - 1] == -1:
        addElem(1,i)
        firstLocColor[c[i] - 1] = i
    else:
        addElem(-1,firstLocColor[c[i] - 1])
        addElem(1,i)
        firstLocColor[c[i] - 1] = i
    
    # get query
    while queryIndex < Q and queries[queryIndex][1] - 1 <= i:
        if queries[queryIndex][1] - 1 == i:
            ans[queries[queryIndex][2]] = firstNSum(queries[queryIndex][1]) - firstNSum(queries[queryIndex][0] - 1)
        queryIndex += 1

for elem in ans:
    print(elem)
n,x,t=map(int,input().split())
print(((n+x-1)//x)+*t)

### FIXED CODE ###

n,x,t=map(int,input().split())
print(((n+x-1)//x)*t)
n, m = map(int, input().split())
mat = [[0 for x in range(n+1)] for y in range(m+1)]

for i in range(n):
    r = list(map(int,input().split()))
    for j in range(m):
        mat[i][j] = r[j]

for i in range(n):
    for j in range(m):
        mat[i][-1] += mat[i][j]
        mat[-1][j] += mat[i][j]
    mat[-1][-1] += mat[i][-1]
        
for i in range(n+1):
    for j in range(m+1):
        print(mat[i][j],end = ' ')
    print('')




### FIXED CODE ###

n, m = map(int, input().split())
mat = [[0 for x in range(m+1)] for y in range(n+1)]

for i in range(n):
    r = list(map(int,input().split()))
    for j in range(m):
        mat[i][j] = r[j]

for i in range(n):
    for j in range(m):
        mat[i][-1] += mat[i][j]
        mat[-1][j] += mat[i][j]
    mat[-1][-1] += mat[i][-1]

for i in range(n+1):
    print(*mat[i])
#AtCorder Begginer Contest 161 Christmas Eve
N,K= map(int, input().split())
Tree_List= [int(input()) for i in range(N)]
Tree_List=np.array(sorted(Tree_List))
min(Tree_List[K-1:]-Tree_List[:-(K-1)])

### FIXED CODE ###

#AtCorder Begginer Contest 161 Christmas Eve
import numpy as np
N,K= map(int, input().split())
Tree_List= [int(input()) for i in range(N)]
Tree_List=np.array(sorted(Tree_List))
Answer=min(Tree_List[K-1:]-Tree_List[:-(K-1)])
print(Answer)
N, M ,Q = map(int, input().aplist())
lists = [list(map(int, input().split())) for i in range(Q)]
ans = 0

def calc_score(A):
    score = 0
    for a, b, c, d in lists:
        if A[b -1] - A[a - 1] == c:
            score += d
    return score

def dfs(A):
    global ans
    if len(A) == N:
        score = calc_score(A)
        ans = max(score, ans)
        return
    for n in range(A[-1], M + 1):
        dfs(A + [n])
        
dfs([1])
print(ans)


### FIXED CODE ###

N, M, Q = map(int, input().split())
lists = [list(map(int, input().split())) for i in range(Q)]
ans = 0

def calc_score(A):
   score = 0
   for a, b, c, d in lists:
       if A[b - 1] - A[a - 1] == c:
           score += d
   return score

def dfs(A):
   global ans
   if len(A) == N:
       score = calc_score(A)
       ans = max(score, ans)
       return
   for n in range(A[-1], M + 1):
       dfs(A + [n])

dfs([1])
print(ans)
N = int(input())
M = int(input())
list =[]
homework = 0

for A in range(0, M):
    list.append(int(input()))
    homework = homework + list[A]

play = N - homework

if play < 0:
    print(-1)
else:
    print(play)

### FIXED CODE ###

N, M = map(int, input().split())
a = list(map(int, input().split()))
homework = 0

for i in range(M):
    homework += a[i]

play = N - homework

if play < 0:
    print(-1)
else:
    print(play)
n=int(input())
List=list(map(int, input().split()))
cnt=[0]*(n-1)
ans=0
for i in range(n-1):
  if List[i]>=List[i+1]:
    if i==0:
      cnt[i]=1
    else:
      cnt[i]=cnt[i-1]+1
print(max(cnt))

### FIXED CODE ###

n=int(input())
List=list(map(int, input().split()))
ans = 0
cnt = 0
for i in range(n-1):
  if List[i]>=List[i+1]:
    if i==0:
      cnt=1
    else:
      cnt+=1
      ans = max(ans, cnt)
  else:
    cnt=0
print(ans)
s = input()
for i in len(s):
  if i%2 == 0:
    print(s[i], end = "")

### FIXED CODE ###

s = input()
t = ''
i = 0
while i <= len(s)-1:
  t += s[i]
  i += 2
print(t)
a, b, m = map(int, input().split())
reizo = list(map(int, input().split()))
renji = list(map(int, input().split()))
p = [list(map(int,input().split())) for i in range(m)]
ans = []
for i in range(m):
  cost = reizo[p[i][0]] + renji[p[i][1]] - p[i][2]
  ans.append(cost)
ans.append(min(reizo) + min(renji))
print(min(ans))

### FIXED CODE ###

a, b, m = map(int, input().split())
reizo = list(map(int, input().split()))
renji = list(map(int, input().split()))
p = [list(map(int,input().split())) for i in range(m)]
ans = []
for i in range(m):
  cost = reizo[p[i][0] - 1] + renji[p[i][1] - 1] - p[i][2]
  ans.append(cost)
ans.append(min(reizo) + min(renji))
print(min(ans))
n, m = map(int, input().split())
breaks = []
for _ in range(m):
  breaks.append(int(input())-1)
stairs = [0 for _ in range(n)]

if 0 not in breaks:
  stairs[0]=1

if 1 not in breaks:
  stairs[1]=1  

for i in range(n):
  if i+1 not in breaks:
    if i+1>=n:
      pass
    else:
      stairs[i+1]=stairs[i]+stairs[i+1]
  if i+2 not in breaks:
    if i+2>=n:
      pass
    else:
      stairs[i+2]=stairs[i]+stairs[i+2]
      
print(stairs[-1]%1000000007)
  

### FIXED CODE ###

n, m = map(int, input().split())
stairs = [1]*(n+1)
for _ in range(m):
  stairs[int(input())] = -1

flg = False
for i in range(2,n+1):
  if stairs[i]==-1:
    pass
  elif stairs[i-1]==-1 and stairs[i-2]==-1:
    flg=True
    break
  elif stairs[i-1]==-1:
    stairs[i] = stairs[i-2]
  elif stairs[i-2]==-1:
    stairs[i] = stairs[i-1]
  else:
    stairs[i] = stairs[i-1] + stairs[i-2]
if flg:
  print(0)
else:
  print(stairs[-1]%1000000007)
print('Yes'if all(input().count(i)%2==0for i in set(s))else'No')

### FIXED CODE ###

s = input()
ss = set(s)

r = 'Yes'
for w in ss:
  if s.count(w) % 2 == 1:
    r = 'No'
    break
print(r)
h, a = map(int, input().split())
Ans = 0
Ans2 = 0

while Ans =< 0:
	Ans = h-a
	Ans2+=1

print(Ans2)

### FIXED CODE ###

H, A = map(int, input().split())
Ans = 0
 
while (H > 0):
	H -= A
	Ans += 1
 
print(Ans)
N=int(input())

if N>=1000:
    print("ABD")
else:
    print("ABC")

### FIXED CODE ###

list1=[1]
for i in range(2,1000):
    list1.append(list1[i-2]+i)
    
#print(list1[0:5])

line=input()
line=line.rstrip().split(" ")
a=int(line[0])
b=int(line[1])

print(list1[b-a-1]-b)
import sys

def f(x):
    p=0
    cnt=0
    for i in range(n-1,-1,-1):
        while p<n and a[i]+a[p]<x:
            p+=1
        cnt+=n-p
    return cnt

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

l,r=a[0]*2,a[n-1]*2

while r-l>0:
    if r-l<=1:
        if f(r)==m: md=r;break 
        else: md=l;break
    md=(r+l)//2
    k=f(md)
    if k==m: break
    elif k>m: l=md
    else: r=md

p=0
cnt=0
ans=0

for q in range(n-1,-1,-1):
    while p<n and a[q]+a[p]<=md:
        try:
            p+=1
            if p==n:
                break
            cnt+=n-p
            ans+=a[q]*(n-p)*2
        except:
            ans=ans


ans+=(m-cnt)*md
print(ans)

### FIXED CODE ###

import sys

def f(x):
    p=0
    cnt=0
    for i in range(n-1,-1,-1):
        while p<n and a[i]+a[p]<x:
            p+=1
        cnt+=n-p
    return cnt

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

l,r=a[0]*2,a[n-1]*2
md=(r+l)//2
while r-l>0:
    if r-l<=1:
        if f(r)==m: md=r;break 
        else: md=l;break
    md=(r+l)//2
    k=f(md)
    if k==m: break
    elif k>m: l=md
    else: r=md

p=0
cnt=0
ans=0

for q in range(n-1,-1,-1):
    try:
        while p<n and a[q]+a[p]<=md:
            p+=1
    except:
        b=1
        while True:
            b+=1

    if p==n: break
    cnt+=n-p
    ans+=a[q]*(n-p)*2


ans+=(m-cnt)*md
print(ans)