Harryxun/stf_run huggingface dataset:
# 19-String-Finding_a_Word.py

# ?????????????´¢
# ??????????????? W ??¨?????? T ????????????????????????T ??????????????? W ?????°???????????????????????°?????????????????????????????????
# ?????? T ????????????????????????????????????????????§????????????????????????????????? Ti ??¨????????????
# ???????????? Ti ?????????????????? W ??¨??????????????????????????°??????????????????
# ???????????§????????¨?°???????????????\???????????????

# Constraints
# W????????????????????????10????¶????????????????
# T??????????????????????????????????????????1000????¶????????????????

# Input
# ?????????????????? W ????????????????????????
# ?¶???????????????°????????????????????£??????????????????????????????
# END_OF_TEXT ??¨??????????????????????????????????????????????????????

# Output
# ?????? W ?????°???????????????????????????

# Sample Input
# computer
# Nurtures computer scientists and highly-skilled computer engineers
# who will create and exploit "knowledge" for the new era.
# Provides an outstanding computer environment.
# END_OF_TEXT

# Sample Output
# 3
# Note

import re

count=0

w = input().lower()

while 1:
	string = input().lower()
	if string=="END_OF_TEXT":
		break;

	string=string.split()
	for i in string:
		count += w==i

print(count)

### FIXED CODE ###

# 19-String-Finding_a_Word.py

# ?????????????´¢
# ??????????????? W ??¨?????? T ????????????????????????T ??????????????? W ?????°???????????????????????°?????????????????????????????????
# ?????? T ????????????????????????????????????????????§????????????????????????????????? Ti ??¨????????????
# ???????????? Ti ?????????????????? W ??¨??????????????????????????°??????????????????
# ???????????§????????¨?°???????????????\???????????????

# Constraints
# W????????????????????????10????¶????????????????
# T??????????????????????????????????????????1000????¶????????????????

# Input
# ?????????????????? W ????????????????????????
# ?¶???????????????°????????????????????£??????????????????????????????
# END_OF_TEXT ??¨??????????????????????????????????????????????????????

# Output
# ?????? W ?????°???????????????????????????

# Sample Input
# computer
# Nurtures computer scientists and highly-skilled computer engineers
# who will create and exploit "knowledge" for the new era.
# Provides an outstanding computer environment.
# END_OF_TEXT

# Sample Output
# 3
# Note

import re

count=0

w = input().lower()

while 1:
	string = input()
	if string=="END_OF_TEXT":
		break;

	for i in string.lower().split():
		count += w==i

print(count)
N=int(input())
A=map(int,input().split())
B=map(int(input().split())
C=map(int,input().split())
A.split()
B.split()
C.split()
for i in range(N):
  s=sum(B[i]):
  if A[i+1]==A[i]+1:
    s=s+C[i]
print(s)

### FIXED CODE ###

N=int(input())
A=list(map(int,input().split()))
B=list(map(int,input().split()))
C=list(map(int,input().split()))
s=0
temp=""
for i in A:
  s+=B[i-1]
  if temp==i-1:
    s+=C[temp-1]
  temp=i
print(s)
import sys
sr = lambda: sys.stdin.readline().rstrip()
ir = lambda: int(sr())
lr = lambda: list(map(int, sr().split()))
def resolve():
    N, M, K = lr()
    fri = [[] for _ in range(N)]
    for i in range(M):
        a, b = lr()
        fri[a-1].append(b-1)
        fri[b-1].append(a-1)
    blo = [[] for _ in range(N)]
    for i in range(K):
        c, d = lr()
        blo[c-1].append(d-1)
        blo[d-1].append(c-1)

    can = [[] for _ in range(N)]
    for i in range(N):
        vis = [False for _ in range(N)]
        s = [i]
        while len(s) > 0:
            v = s.pop()
            vis[v] = True
            for j in fri[v]:
                if vis[j]:
                    continue
                s.append(j)
                if j not in fri[i] and j not in blo[i] and j not in can[i]:
                    can[i].append(j)
    ans = []
    for i in range(N):
        ans.append(len(can[i]))
    print(*ans, sep=' ')
resolve()

### FIXED CODE ###

import sys
sr = lambda: sys.stdin.readline().rstrip()
ir = lambda: int(sr())
lr = lambda: list(map(int, sr().split()))
def resolve():
    N = ir()
    print(N//2+N%2)
resolve()
import sys
from collections import deque
def input(): return sys.stdin.readline().rstrip()


def main():
    h, w = map(int, input().split())
    Ch, Cw = map(int, input().split())
    Dh, Dw = map(int, input().split())
    Ch -= 1
    Cw -= 1
    Dh -= 1
    Dw -= 1
    s2 = [list(input()) for i in range(h)]
    s2[Ch][Cw] = 0
    d = deque()
    d.append([Ch, Cw])
    while d:
        nowh, noww = d.popleft()
        for i, j in [[0, 1], [1, 0], [0, -1], [-1, 0]]:
            if ((0 <= nowh+i < h) and (0 <= noww+j < w)):
                if s2[nowh+i][noww+j] == '.':
                    s2[nowh+i][noww+j] = s2[nowh][noww]
                    d.appendleft([nowh+i, nowh+j])
                elif s2[nowh+i][noww+j] != '#':
                    if s2[nowh+i][noww+j] > s2[nowh][noww]:
                        s2[nowh+i][noww+j] = s2[nowh][noww]
                        d.appendleft([nowh+i, noww+j])
        for i in [-2,-1,0,1,2]:
            for j in [-2,-1,0,1,2]:
                if ((0 <= nowh+i < h) and (0 <= noww+j < w)):
                    if s2[nowh+i][noww+j] == '.':
                        s2[nowh+i][noww+j] = s2[nowh][noww]+1
                        d.append([nowh+i, noww+j])
                    elif s2[nowh+i][noww+j] != '#':
                        if s2[nowh+i][noww+j] > s2[nowh][noww]+1:
                            s2[nowh+i][noww+j] = s2[nowh][noww]+1
                            d.append([nowh+i, noww+j])

    if s2[Dh][Dw] == '.':
        print(-1)
    else:
        print(s2[Dh][Dw])


if __name__ == '__main__':
    main()

### FIXED CODE ###

import sys
from collections import deque
def input(): return sys.stdin.readline().rstrip()
 
 
def main():
    h, w = map(int, input().split())
    Ch, Cw = map(int, input().split())
    Dh, Dw = map(int, input().split())
    Ch -= 1
    Cw -= 1
    Dh -= 1
    Dw -= 1
    s2 = [list(input()) for i in range(h)]
    s2[Ch][Cw] = 0
    d = deque()
    d.append([Ch, Cw])
    while d:
        nowh, noww = d.popleft()
        if [nowh,noww]==[Dh,Dw]:
            print(s2[nowh][noww])
            exit()
        for i, j in [[0, 1], [1, 0], [0, -1], [-1, 0]]:
            if ((0 <= nowh+i < h) and (0 <= noww+j < w)):
                if s2[nowh+i][noww+j] == '.':
                    s2[nowh+i][noww+j] = s2[nowh][noww]
                    d.appendleft([nowh+i, noww+j])
                elif s2[nowh+i][noww+j] != '#':
                    if s2[nowh+i][noww+j] > s2[nowh][noww]:
                        s2[nowh+i][noww+j] = s2[nowh][noww]
                        d.appendleft([nowh+i, noww+j])
        for i in [-2,-1,0,1,2]:
            for j in [-2,-1,0,1,2]:
                if ((0 <= nowh+i < h) and (0 <= noww+j < w)):
                    if s2[nowh+i][noww+j] == '.':
                        s2[nowh+i][noww+j] = s2[nowh][noww]+1
                        d.append([nowh+i, noww+j])
                    elif s2[nowh+i][noww+j] != '#':
                        if s2[nowh+i][noww+j] > s2[nowh][noww]+1:
                            s2[nowh+i][noww+j] = s2[nowh][noww]+1
                            d.append([nowh+i, noww+j])
    print(-1)
 
 
if __name__ == '__main__':
    main()
N, K = map(int, input().split())
N = abs(N - K)
while N > 100:
    N = round(N / N[0])
while N > 0:
    N = (N - K) 
print(abs(N))


### FIXED CODE ###

n, k = map(int, input().split())
if n==0 or k==1:
    print(0)
    exit()
elif n<k:
    print(min(n, abs(n-k)))
    exit()
elif n % k == 0:
    print(0)
    exit()
else:
    mx = n%k
print(min(abs(mx-k), mx))
import sys
sys.setrecursionlimit(10**7)
input = sys.stdin.readline
N = int(input())
AB = [tuple(map(int,input().split())) for i in range(N-1)]
if N==2:
    print(1,2)
    exit()
es = [[] for i in range(N)]
for a,b in AB:
    a,b = a-1,b-1
    es[a].append(b)
    es[b].append(a)

depth = [-1]*N
depth[0] = 0
def dfs(v,p=-1):
    for to in es[v]:
        if to==p: continue
        depth[to] = depth[v] + 1
        dfs(to,v)
dfs(0)

mem = [[[] for _ in range(2)] for _ in range(4)]
for i,d in enumerate(depth):
    if d%2:
        mem[0][0].append(i)
        mem[1][1].append(i)
    else:
        mem[0][1].append(i)
        mem[1][0].append(i)
    if d<=1:
        mem[2][0].append(i)
        mem[3][1].append(i)
    else:
        if ((d-2)//3)%2:
            mem[2][0].append(i)
            mem[3][1].append(i)
        else:
            mem[2][1].append(i)
            mem[3][0].append(i)

for k in range(4):
    ans = [None] * N
    for i in range(1,N+1):
        if i%3==0:
            if len(mem[k][0])==0 and len(mem[k][1])==0:
                break
            if len(mem[k][0]) <= len(mem[k][1]):
                j = mem[k][1].pop()
            else:
                j = mem[k][0].pop()
        elif i%3==1:
            if len(mem[k][0])==0:
                break
            j = mem[k][0].pop()
        else:
            if len(mem[k][1])==0:
                break
            j = mem[k][1].pop()
        ans[j] = i
    else:
        print(*ans)
        exit()
assert False

### FIXED CODE ###

import sys
sys.setrecursionlimit(10**7)
input = sys.stdin.readline
N = int(input())
AB = [tuple(map(int,input().split())) for i in range(N-1)]
if N==2:
    print(1,2)
    exit()
es = [[] for i in range(N)]
for a,b in AB:
    a,b = a-1,b-1
    es[a].append(b)
    es[b].append(a)

depth = [-1]*N
depth[0] = 0
def dfs(v,p=-1):
    for to in es[v]:
        if to==p: continue
        depth[to] = depth[v] + 1
        dfs(to,v)
dfs(0)

g1 = []
g2 = []
for i,d in enumerate(depth):
    if d%2:
        g2.append(i)
    else:
        g1.append(i)
if len(g1) < len(g2):
    g1,g2 = g2,g1

ans = [None] * N
if len(g2) <= N//3:
    for n in range(1,N+1):
        if n%3==0:
            if g2:
                i = g2.pop()
            else:
                i = g1.pop()
        else:
            i = g1.pop()
        ans[i] = n
else:
    for n in range(1,N+1,3):
        i = g1.pop()
        ans[i] = n
    for n in range(2,N+1,3):
        i = g2.pop()
        ans[i] = n
    for n in range(3,N+1,3):
        if g1:
            i = g1.pop()
        else:
            i = g2.pop()
        ans[i] = n
print(*ans)
def resolve():
    N = int(input())
    list = list(map(int, input().split()))
    reduce(lamda x, y: x * y, (list))
    from operator import mul
    ans = reduce(mul, (list))
    print(ans if ans <= 10**18 else "-1")
resolve()

### FIXED CODE ###

def resolve():
    N = int(input())
    A = list(map(int, input().split()))
    ans = 1
    if 0 in A:
        print(0)
        exit()
    for i in A:
        ans *= i
        if ans > 10**18:
            print(-1)
            exit()
    print(ans)
resolve()
n = int(input())
a = list(map(int,input().split()))
count = 0

for i in range(10**10):
  for j in range(n):
    if a[j]%2 != 0:
      print(count)
      exit()
    else:
      a[j] = a//2
  count += 1
  

### FIXED CODE ###

n = int(input())
a = list(map(int,input().split()))
count = 0

for i in range(10**10):
  for j in range(n):
    if a[j]%2 != 0:
      print(count)
      exit()
    else:
      a[j] = a[j]//2
  count += 1
s=input()

x=s[0],len(s)-2,s[-1]
print(x.gsub(" ",""))


### FIXED CODE ###

# -*- coding utf-8 -*-
s=list(str(input()))
x=(len(s)-2)

print(s[0],end="") 
print(x,end="")
print(s[-1])
n=int(input())
a=list(map(int,input().split()))
cnt = n//2
print(a[:cnt],a[cnt:])
ans=abs(sum(a[:cnt]) - sum(a[cnt:]))

for i in range(1,cnt):
    
    print(a[:cnt+i],a[cnt+i:])
    if ans > abs(sum(a[:cnt+i]) - sum(a[cnt+i:])):
        ans = abs(sum(a[:cnt+i]) - sum(a[cnt+i:]))
for i in range(1,cnt):
    print(a[:cnt-i],a[cnt-i:])
    if ans > abs(sum(a[:cnt-i]) - sum(a[cnt-i:])):
        ans = abs(sum(a[:cnt-i]) - sum(a[cnt-i:]))

print(ans)

### FIXED CODE ###

n=int(input())
a=list(map(int,input().split()))
ans=10**100
x=sum(a)
b=0
for i in a[:-1]:
   b+=i
   x-=i
   ans=min(ans,abs(x-b))
print(ans)
a,b,c,d = input().split()
a = int(a)
b = int(b)
c = int(c)
d = int(d)

if a >= 0 and b >= 0 and c >= 0 and d >= 0:
  answer = b*d

elif a <0 and b<0 and c <0 and d <0:
  answer = a*c

elif a < 0 and c < 0 and b >= 0 and d >= 0:
  temp1 = -a
  temp2 = -c
  temp3 = max(temp1,b)
  temp4 = max(temp2,d)
  answer = temp3*temp4

print(answer)

### FIXED CODE ###

a,b,c,d = input().split()
a = int(a)
b = int(b)
c = int(c)
d = int(d)

temp1 = a*c
temp2 = a*d
temp3 = b*c
temp4 = b*d

answer = max(temp1,temp2,temp3,temp4)

print(answer)
from math import gcd


if __name__ == "__main__":
    n, m = map(int, input().split())
    a = list(map(int, input().split()))
    a_lcm = a[0]
    for i in range(1, n):
        a_lcm = a_lcm * a[i] // gcd(a_lcm, a[i])
    print(int(m / a_lcm - 0.5) + 1)


### FIXED CODE ###

from functools import reduce


def count_factors(a, factor):
    count = 0
    while a % factor == 0:
        count += 1
        a //= factor
    return count


def gcd(a, b):
    if b == 0:
        return a
    return gcd(b, a % b)


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


if __name__ == "__main__":
    n, m = map(int, input().split())
    a = list(set(map(lambda x: int(x) // 2, input().split())))
    num_of_two = count_factors(a[0], 2)
    for ai in a[1:]:
        if count_factors(ai, 2) != num_of_two:
            print(0)
            exit()

    a_lcm = reduce(lambda x, y: lcm(x, y), a)
    if a_lcm > m:
        print(0)
        exit()

    print((m // a_lcm + 1) // 2)
from collections import defaultdict
import heapq
vertices, edges = (int(n) for n in input().split(" "))
conn = defaultdict(set)
weight = defaultdict(dict())
for i in range(edges):
    v1, v2, w = (int(n) for n in input().split(" "))
    conn[v1] |= {v2}
    conn[v2] |= {v1}
    weight[v1][v2] = w
    weight[v2][v1] = w

queue = []
heapq.heapify(queue)
heapq.heappush(queue, [0,0])
went = set()
went_vertices = 0
answer_weight = 0
while went_vertices < vertices:
    here_v, here_weight = heapq.heappop(queue)
    if here_v in went:
        continue
    went |= {here_v}
    for c in conn[here_v]:
        if c not in went:
            heapq.heappush(queue,[c, weight[here_v][c]])
    answer_weight += here_weight
    went_vertices += 1
print(answer_weight)

### FIXED CODE ###

from collections import defaultdict
import heapq
vertices, edges = (int(n) for n in input().split(" "))
conn = defaultdict(set)
weight = defaultdict(dict)
for i in range(edges):
    v1, v2, w = (int(n) for n in input().split(" "))
    conn[v1] |= {v2}
    conn[v2] |= {v1}
    weight[v1][v2] = w
    weight[v2][v1] = w

queue = []
heapq.heapify(queue)
heapq.heappush(queue, [0,0])
went = set()
went_vertices = 0
answer_weight = 0
while went_vertices < vertices:
    here_weight, here_v = heapq.heappop(queue)
    if here_v in went:
        continue
    went |= {here_v}
    for c in conn[here_v]:
        if c not in went:
            heapq.heappush(queue,[weight[here_v][c], c])
    answer_weight += here_weight
    went_vertices += 1
print(answer_weight)
n=int(input())
a=list(map(int,input().split()))

x2=0
x4=0
x1=0
for x in a:
  if x%2==0:
    x2+=1
  if x%4==0:
    x4+=1
  if x%2==1:
    x1+=1
    
if x4+x1==n:
  if x4>=x1-1:
    print('Yes')
  else:
    print('No')
  
else:
  if x4>=x1:
    print('Yes')
  else:
    
    print('No')


### FIXED CODE ###

n,m=map(int,input().split())
print((m-1)*(n-1))
import statistics
N = int(input())
A = [int(a)-(i+1) for i, a in enumerate(input().split())]
ans = float('inf')
medi = statistics.median(A)
for b in range(medi-1, medi+2):
  ans = min(ans, sum([abs(A[i]-b) for i in range(N)]))
print(ans)


### FIXED CODE ###

import statistics
N = int(input())
A = [int(a)-(i+1) for i, a in enumerate(input().split())]
ans = float('inf')
medi = int(statistics.median(A))
for b in range(medi-1, medi+2):
  ans = min(ans, sum([abs(A[i]-b) for i in range(N)]))
print(ans)
import sys
n, m = map(int, input().split())
if m==0:
    print("Yes")

tree = [[] for _i in range(n+1)]
for _i in range(m):
    l, r, d = map(int, input().split())
    tree[l].append([r, d])
    tree[r].append([l, -d])


from collections import deque
INF = float("inf")
visit = [INF for _i in range(n+1)]
visit[l] = 0
q = deque([l])
while q:
    p = q.popleft()
    for i, j in tree[p]:
        if i==p:
            continue
        elif visit[i] == INF:
            visit[i] = visit[p]+j
            q.append(i)
        elif visit[i] == visit[p]+j:
            continue
        else:
            print("No")
            sys.exit()
print(visit)
print("Yes")

### FIXED CODE ###

import sys
n, m = map(int, input().split())
if m==0:
    print("Yes")
    sys.exit()

tree = [[] for _i in range(n+1)]
for _i in range(m):
    l, r, d = map(int, input().split())
    tree[l].append([r, d])
    tree[r].append([l, -d])

from collections import deque
INF = "INF"
visit = [INF for _i in range(n+1)]
for i in range(1, n+1):
    if visit[i]==INF:
        visit[i] = 0
    else:
        continue
    q = deque([i])
    while q:
        p = q.popleft()
        if visit[p]==INF:
            visit[p] = 0
        for i, j in tree[p]:
            if i==p:
                continue
            elif visit[i] == INF:
                visit[i] = visit[p]+j
                q.append(i)
            elif visit[i] == visit[p]+j:
                continue
            else:
                print("No")
                sys.exit()

print("Yes")
n, m = list(map(int, input().split()))
AB = [[int(x) for x in input().split()] for _ in range(m)]

# representation matrix
repn = [[] for j in range(n)]
for a, b in AB:
    a -= 1
    b -= 1
    repn[a].append(b)
    repn[b].append(a)


# Minimum Spanning Tree
tree = [[] for i in range(n)]
visited = [True] + [False] * (n - 1)
q = [0]

while q:
    u = q.pop()
    for v in repn[u]:
        if visited[v]:
            continue
        visited[v] = True
        tree[u].append(v)
        tree[v].append(u)
        q.append(v)


# define directions of the edges other than that of MST
degree = [0] * n
ans = []

for a, b in AB:
    a -= 1
    b -= 1
    if b in tree[a]:
        continue
    ans.append('{} {}'.format(a + 1, b + 1))
    degree[a] += 1


# defining orientations
def dfs(u = 0, parent = None):
    for v in tree[u]:
        if v == parent:
            continue
        dfs(v, u)
        if degree[v] % 2 == 0:
            ans.append('{} {}'.format(u + 1, v + 1))
            degree[u] += 1
        else:
            ans.append('{} {}'.format(v + 1, u + 1))
            degree[v] += 1

dfs()


# output answer
if degree[0] % 2 == 1:
    print(-1)
else:
    print('\n'.join(ans))


### FIXED CODE ###

import sys
input = sys.stdin.readline
sys.setrecursionlimit(10**6)
from collections import deque

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

if m % 2 == 1:
    print(-1)
    exit()



AB = [[int(x) for x in input().split()] for _ in range(m)]

# representation matrix
repn = [[] for j in range(n + 1)]
for a, b in AB:
    repn[a].append(b)
    repn[b].append(a)


# Minimum Spanning Tree
tree = [set() for i in range(n + 1)]
visited = [False] * (n + 1)
visited[1] = True
q = deque([1])

while q:
    u = q.popleft()
    for v in repn[u]:
        if visited[v]:
            continue
        visited[v] = True
        tree[u].add(v)
        tree[v].add(u)
        q.append(v)


# define directions of the edges other than that of MST
degree = [0] * (n + 1)
ans = []

for a, b in AB:
    if b in tree[a]:
        continue
    ans.append('{} {}'.format(a, b))
    degree[a] += 1


# defining orientations
def dfs(u = 1, parent = None):
    for v in tree[u]:
        if v == parent:
            continue
        dfs(v, u)
        if degree[v] % 2 == 0:
            ans.append('{} {}'.format(u, v))
            degree[u] += 1
        else:
            ans.append('{} {}'.format(v, u))
            degree[v] += 1

dfs()

print('\n'.join(ans))
N = int(input())
l = [int(i) for i in input().split()]

l = sorted(l)


sema = True
mod_list = []
for i in range(len(l)):
    for j in range(i + 1,len(l)):
        if not l[j] % l[i] == 0:
            sema = False
            mod_list.append(l[j] % l[i])
mod_list = set(mod_list)
if sema == True:
    print(min(l))
else:
    ans = min(l)
    print(min([i % m for i in l for m in mod_list if i % m != 0]))


### FIXED CODE ###

# import math
from functools import reduce
input()
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b, a%b)

def gcds(*numbers):
    return reduce(gcd, numbers)
print(gcds(*[int(i) for i in input().split()]))
from functools import gcd
a, b, k = map(int, input().split())

_gcd = gcd(a, b)

count = 0
for i in range(1, _gcd+1)[::-1]:
    if a % i == 0 and b % i == 0:
        count += 1
    if count == k:
        print(i)
        break


### FIXED CODE ###

from fractions import gcd
a, b, k = map(int, input().split())

_gcd = gcd(a, b)

count = 0
for i in range(1, _gcd+1)[::-1]:
    if a % i == 0 and b % i == 0:
        count += 1
    if count == k:
        print(i)
        break
l = input().split()
N, A, B = [int(num) for i in l]
NA = N * A
print(min(NA,B))

### FIXED CODE ###

l = input().split()
N, A, B = [int(i) for i in l]
train = N * A
m = min(train, B)
print(m)
import sys

nCr = {}
def cmb(n, r):
    if r == 0 or r == n: return 1
    if r == 1: return n
    if (n,r) in nCr: return nCr[(n,r)]
    nCr[(n,r)] = cmb(n-1,r) + cmb(n-1,r-1)
    return nCr[(n,r)]


N=int(input())
L=input()
L=L.split()
L=[int(item) for item in L]
L.sort()
if N<=3:
    ans=1
else:
    ans=cmb(N,3)
for i in range(N-2):
    for j in range(i+1,N-1):
        for k in range(j+1,N):
            if (L[i]+L[j])<=L[k]:
                ans-=(N-k)
                break


print(int(ans))

### FIXED CODE ###

from operator import mul
from functools import reduce
import bisect

def cmb(n,r):
    r = min(n-r,r)
    if r == 0: return 1
    over = reduce(mul, range(n, n - r, -1))
    under = reduce(mul, range(1,r + 1))
    return over // under

N=int(input())
L=input()
L=L.split()
L=[int(item) for item in L]
L.sort()
ans=cmb(N,3)
ans2=0
for i in reversed(range(2,N)):
    for j in reversed(range(1,i)):
        a=bisect.bisect_right(L,L[i]-L[j])
#        print('{0}:{1}'.format(a,j))
#        print(a)
        if(a<j):
            ans2+=(j-a)
    

print(ans2)
n = int(input())
sum = 0
for _ in range(n):
  a,b = input().split()
  aa = int(a)
  if b == 'JPY':
    bb = 1
  else:
    bb = 380000.0
  sum += aa*bb
print(sum)

### FIXED CODE ###

n = int(input())
sum = 0
for _ in range(n):
  a,b = input().split()
  aa = float(a)
  if b == 'JPY':
    bb = 1
  else:
    bb = 380000.0
  sum += aa*bb
print(sum)
n,m = map(int,input().split())
all = list(map(int,input().split()))
result = 0

for i in range(m):
    result += all[i]

result = max(-1 ,n-(result))
print(result)

### FIXED CODE ###

n,m = map(int,input().split())
all = list(map(int,input().split()))
result = 0

for i in range(m):
    result += all[i]

result = max(-1 ,n-(result))
print(result)
N = int(input())
S = list(input()+"")
#Dic={}
count=0
MOD = 10 ** 9 + 7

def ff(i,L):
    global count
    global MOD
    
    if(N>i):
        if(S[i] not in L):
            ff(i+1,L+S[i])
        ff(i+1,L)
    else:
        count += 1
        count %= MOD

ff(0,"")
print(count-1)

### FIXED CODE ###

n = int(input())
s = input()
l = {}
for c in s:
    if c in l:
        l[c] += 1
    else:
        l[c] = 1
ans = 1
for i in l.values():
    ans *= i+1
print((ans-1)%(10**9+7))
x = int(input())
dp = [0]*(x + 1)
dp[100] = 1 
dp[101] = 1
dp[102] = 1
dp[103] = 1
dp[104] = 1
dp[105] = 1

for i in range(100,x+1):
    for j in range(100,106):
        dp[i+j] = max(dp[i] , dp[i+j])

print(dp[x])


### FIXED CODE ###

x = int(input())
dp = [0]*(x+105+1)
dp[100] = 1 
dp[101] = 1
dp[102] = 1
dp[103] = 1
dp[104] = 1
dp[105] = 1

for i in range(100,x+1):
    for j in range(100,106):
        dp[i+j] = max(dp[i] , dp[i+j])

print(dp[x])
N = int(input())
num = [0,0,0,0,0]
answer = 0
for i in range(N):
	a = input()
	if a[0]=='M':
		num[0] += 1
	if a[0]=='A':
		num[1] += 1
	if a[0]=='R':
		num[2] += 1
	if a[0]=='C':
		num[3] += 1
	if a[0]=='H':
		num[4] += 1

for i in range(3):
  for j in range(i+1, 4):
	for k in range(j+1, 5):
		answer += num[i]*num[j]*num[k]

print(answer)

### FIXED CODE ###

n = int(input())
out = int(n / 3)
print(out)