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

n,q = map(int, input().split())
s = input()
# lr = [list(map(int, input().split())) for i in range(q)]

idx = [s[i:i+2] == "AC" for i in range(n-1)]
idx2 = [sum(idx[:i]) for i in range(n)]

for i in range(q):
    l,r = map(int, input().split())
    print(idx2[r-1]-idx2[l-1])



### FIXED CODE ###

n,q = map(int, input().split())
s = input()
# lr = [list(map(int, input().split())) for i in range(q)]

idx = [0] * n

# idx = [idx[i-1]+int(s[i-1:i+1] == "AC") for i in range(1, n)]
for i in range(1,n):
    idx[i] = idx[i-1] + (s[i-1:i+1] == "AC")


for i in range(q):
    l,r = map(int, input().split())
    print(idx[r-1]-idx[l-1])
### BUGGY CODE ###

N = int(input())
P = list(map(int,input().split()))
cnt = 0
for i in reversed(range(0,N)):
    if P[i]<=min(P):
        cnt +=1
    P.pop()
print(cnt)


### FIXED CODE ###

#########行列読み込み ##############################################
"""
from sys import stdin
n = int(stdin.readline().rstrip())
data = [stdin.readline().rstrip().split() for _ in range(n)]
print(data)
print(*data, sep='\n')
"""
##################################################################
#########入力系####################################################
"""
s =input()
s=list(input())
a=int(input())
x,y = map(int,input().split())	
li = input().split()	
li = list(map(int,input().split()))	
li = input().split('T')	
"""
##################################################################

#########行列読み込み ##############################################
"""
from sys import stdin
n = int(stdin.readline().rstrip())
data = [stdin.readline().rstrip().split() for _ in range(n)]
print(data)
print(*data, sep='\n')
"""
##################################################################
#########入力系####################################################
"""
s =input()
s=list(input())
a=int(input())
x,y = map(int,input().split())	
li = input().split()	
li = list(map(int,input().split()))	
li = input().split('T')	
"""
##################################################################
N = int(input())
P = list(map(int,input().split()))
cnt = 0
mi = P[0]
for i in range(N):
    if P[i]<=mi:
        cnt +=1
    mi = min(mi,P[i])
print(cnt)
### BUGGY CODE ###

import heapq
class pqheap:
    def __init__(self):
        self.p = list()
        self.q = list()

    def insert(self,x):
        heapq.heappush(self.p, x)
        return

    def erase(self,x):
        heapq.heappush(self.q, x)
        return

    def minimum(self):
        while self.q and self.p[0] == self.q[0]:
            heapq.heappop(self.p)
            heapq.heappop(self.q)
        return self.p[0]
n=int(input())
b=list(map(int,input().split()))
a=list(map(int,input().split()))
pq=pqheap()
[pq.insert([-x,i]) for i,x in enumerate(a)]
ans=0
while len(pq.p)>len(pq.q):
    m=pq.minimum()
    pq.erase(m)
    v,i=m
    v=-v
    if v==b[i]:continue
    v-=b[i]    
    tmp=a[(i-1)%n]+a[(i+1)%n]
    ans+=v//tmp
    v%=tmp
    v+=b[i]
    a[i]=v
    if v<b[i]:
        print(-1)
        exit()
    pq.insert([-v,i])
print(ans)


### FIXED CODE ###

def main(n,a,b):
    ans=0
    while True:
        cnt=0
        for i in range(n):
            m=a[(i-1)%n]+a[(i+1)%n]
            if m<a[i] and b[i]<a[i]:
                a[i]-=b[i]
                cnt+=a[i]//m
                a[i]%=m
                a[i]+=b[i]
        if cnt==0:break
        ans+=cnt
    if a==b:
        print(ans)
    else:
        print(-1)
if __name__=='__main__':
    n=int(input())
    b=list(map(int,input().split()))
    a=list(map(int,input().split()))
    main(n,a,b)
### BUGGY CODE ###

n,m=map(int,input().split())
flag=n*[0]
for i in range(m):
    l,r=map(int,input().split())
    flag[l-1:r]=list(map(lambda n: n+1,flag[l-1:r]))

print(flag.count(m))

### FIXED CODE ###

n,m=map(int,input().split())
ansl=1
ansr=n
flag=0
for i in range(m):
    l,r=map(int,input().split())
    if (ansl>r)or(ansr<l):
        flag=1
        break
    if ansl<l:
        ansl=l
    if ansr>r:
        ansr=r
if flag==0:
    print(ansr-ansl+1)
else:
    print(0)
### BUGGY CODE ###

N=int(input())

ans=0
for i in range(1,N):
  for j in range(1,N):
    if i*j<N:
      ans+=1
    else:
      break
print(ans)

### FIXED CODE ###

N=int(input())

ans=0
for i in range(1,N):
  for j in range(1,N):
    if i*j<N:
      ans+=1
    else:
      break
print(ans)
### BUGGY CODE ###

n = int(input())
count = 0

for i in range(n):
    data = int(input())
    if data == 2:
        count += 1
    for j in range(2,data):
        if data % j == 0:
            break
        elif j == data - 1:
            count += 1

print(count)

### FIXED CODE ###

n = int(input())
count = 0

for i in range(n):
    data = int(input())
    data = abs(data)
    if data == 2:
        count += 1
    elif pow(2,data-1,data) == 1:
            count += 1

print(count)
### BUGGY CODE ###

s = input()
q = int(input())
lead = ''
end = ''
inversion_flg = -1

for j in range(q):
    query = input().split()
    if query[0] == "1":
        inversion_flg *= -1
    else:
        if inversion_flg == 1:
            if query[1] == "1":
                query[1] = "2"
            else:
                query[1] = "1"
        if query[1] == "1":
            lead += query[2]
        else:
            end += query[2]

lead = lead[::-1]
s = lead + s + end
if inversion_flg == 1:
    s = s[::-1]
print(s)


### FIXED CODE ###

s = input()
q = int(input())
query = []
lead = ''
end = ''
inversion_flg = False
 
for j in range(q):
    i = input().split()
    if i[0] == "1":
        if inversion_flg:
            inversion_flg = False 
        else:
            inversion_flg = True
    else:
        if inversion_flg:
            if i[1] == "1":
                i[1] = "2"
            else:
                i[1] = "1"
        if i[1] == "1":
            lead+=i[2]
        else:
            end+=i[2]
 
lead = lead[::-1]
s = lead+s+end
if inversion_flg:
    s = s[::-1]
print(s)
### BUGGY CODE ###

n, k = map(int, input().split())
d = [11, 16, 10, 25, 9, 24, 19, 13, 18, 12, 17]
print(len([x for x in range(d[k], 7 * (n - 1), 11) if x % 7 > 1]))


### FIXED CODE ###

n, k = map(int, input().split())
d = [11, 16, 10, 25, 9, 24, 19, 13, 18, 12, 17]
e = 7 * (n - 1)
r = (e - d[k] - 1) // 77
print(5 * r + len([x for x in range(d[k] + 77 * r, e, 11) if x % 7 > 1]))
### BUGGY CODE ###

N=int(input())
S=[]
count=0
for i in range(N):
    A=input()
    if A not in S:
        S.append(A)
        count+=1
print(count)

### FIXED CODE ###

N=int(input())
S=[]
for i in range(N):
    A=input()
    S.append(A)
print(len(set(S)))
### BUGGY CODE ###

N,X,Y=map(int,input().split())

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

for i in range(N):
    for j in range(i+1,N):
        d[i][j]=min(abs(i-j),abs(X-1-i)+abs(Y-1-j)+1,abs(X-1-j)+abs(Y-1-i)+1)

ans=[0 for _ in range(N)]
for k in range(N):
    for l in range(k+1,N):
        if d[k][l]<N:
            ans[d[k][l]]+=1
    
for o in range(N-1):
    print(ans[o+1])

### FIXED CODE ###

N,X,Y=map(int,input().split())

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

for i in range(N):
    for j in range(i+1,N):
        d[i][j]=min(abs(i-j),abs(X-1-i)+abs(Y-1-j)+1,abs(X-1-j)+abs(Y-1-i)+1)

ans=[0 for _ in range(N)]
for k in range(N):
    for l in range(k+1,N):
        if d[k][l]<N:
            ans[d[k][l]]+=1
    
for o in range(N-1):
    print(ans[o+1])
### BUGGY CODE ###

import sys

from itertools import combinations


def solve(n, pairs):
    survivors = {v: {v + 1} for v in range(n)}
    for x, y in reversed(pairs):
        for v, srv in survivors.copy().items():
            if x in srv:
                if y in srv:
                    del survivors[v]
                else:
                    srv.add(y)
            elif y in srv:
                srv.add(x)
    return sum(su.isdisjoint(sv) for su, sv in combinations(survivors.values(), 2))


n, m = map(int, input().split())
pairs = []
for line in sys.stdin.readlines():
    x, y = map(int, line.split())
    pairs.append((x, y))
print(solve(n, pairs))


### FIXED CODE ###

def get_survivors(n, pairs):
    survivors = {v: {v} for v in range(n)}
    for x, y in reversed(pairs):
        for v, srv in survivors.copy().items():
            if x in srv:
                if y in srv:
                    del survivors[v]
                else:
                    srv.add(y)
            elif y in srv:
                srv.add(x)
    return survivors


def solve(n, pairs):
    survivors = get_survivors(n, pairs)
    ans = 0
    for u, su in survivors.items():
        for v, sv in survivors.items():
            if u >= v:
                continue
            if su.isdisjoint(sv):
                ans += 1
    return ans


n, m = map(int, input().split())
pairs = []
for _ in range(m):
    x, y = map(int, input().split())
    x -= 1
    y -= 1
    pairs.append((x, y))
print(solve(n, pairs))
### BUGGY CODE ###

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

cf=[1]
for i in range(2,min(a,b)+1):
    if a%i==0 and b%i==0:
        cf.append(i)
n=len(cf)
dele=[]
for i in range(n-1):
    flag=0
    for j in range(i+1,n):
        if fractions.gcd(cf[i],cf[j])!=1:
            dele.append(cf[j])
result=set(cf)-set(dele)
print(len(result))

### FIXED CODE ###

a,b=map(int,input().split())
def factorization(n):
    arr = []
    temp = n
    for i in range(2, int(-(-n**0.5//1))+1):
        if temp%i==0:
            while temp%i==0:
                temp //= i
            arr.append(i)
    if temp!=1:
        arr.append(temp)

    if arr==[]:
        arr.append(n)

    return arr
aa=factorization(a)
bb=factorization(b)
n=len(aa)
ans=[]
if n>len(bb):
    n=len(bb)
    for i in range(n):
        if bb[i] in aa:
            ans.append(bb[i])
else:
    for i in range(n):
        if aa[i] in bb:
            ans.append(aa[i])
ans.append(1)
ans=set(ans)
print(len(ans))
### BUGGY CODE ###

from math import gcd
def INT(): return int(input())
 
 
K = INT()
sum = 0
 
for n in range(K):
  for m in range(K):
    for l in range(K):
      sum += gcd(n+1, gcd(m+1, l+1))
 
print(sum)




### FIXED CODE ###

import sys, re
from collections import deque, defaultdict, Counter
from math import ceil, sqrt, hypot, factorial, pi, sin, cos, radians, gcd
from itertools import accumulate, permutations, combinations, product, groupby
from operator import itemgetter, mul
from copy import deepcopy
from string import ascii_lowercase, ascii_uppercase, digits
from bisect import bisect, bisect_left
from heapq import heappush, heappop
from functools import reduce
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def ZIP(n): return zip(*(MAP() for _ in range(n)))
sys.setrecursionlimit(10 ** 9)
INF = float('inf')
mod = 10 ** 9 + 7
 
K = INT()
sum = 0
 
for n in range(K):
  for m in range(K):
    for l in range(K):
      sum += gcd(n+1, gcd(m+1, l+1))
 
print(sum)
### BUGGY CODE ###

#ID
n,m=map(int,input().split())
p=[0]
y=[0]
z=[0]
for i in range(1,m+1):
    P,Y=map(int,input().split())
    p.append(P)
    y.append(Y)
    z.append(i)
for i in range(2,m+1):
    k=i
    for j in range(i-1):
        if y[k]<y[k-1]:
            y[k],y[k-1]=y[k-1],y[k]
            z[k],z[k-1]=z[k-1],z[k]
            p[k],p[k-1]=p[k-1],p[k]
            k-=1
        else:
            break
t=[1]*(n+1)
ID=[0]*(m+1)
for i in range(1,m+1):
    ID[z[i]]=str(p[i]*(10**6)+t[p[i]]).zfill(12)
    t[p[i]]+=1
for i in range(1,m+1):
    print(ID[i])

### FIXED CODE ###

#ID
from collections import deque
n,m=map(int,input().split())
s=[]
for i in range(m):
    p,y=map(int,input().split())
    s.append([y,p,i+1])
s=sorted(s)
s=deque(s)
s.appendleft(0)
t=[1]*(n+1)
ID=[0]*(m+1)
for i in range(1,m+1):
    ID[s[i][2]]=str(s[i][1]*(10**6)+t[s[i][1]]).zfill(12)
    t[s[i][1]]+=1
for i in range(1,m+1):
    print(ID[i])
### BUGGY CODE ###

a,b,k=map(int, input().split())
for i in range(a,b+1):
	if i<(a+k) or i>(b-k):
		print(i)

### FIXED CODE ###

a,b,k = map(int, input().split())
for i in range(a,min(b+1,a+k)):
    print(i)
for i in range(max(b-k+1,(a+k)),b+1):
    print(i)
### BUGGY CODE ###

from collections import Counter
N = int(input())
A = input()
C_A = Counter(A.split())
S = 0
for ca in C_A:
  S += int(ca) * C_A[ca]

Q = int(input())
for q in range(Q):
  b, c = input().split()
  A = A.replace(b,c)
  S += (int(c) - int(b)) * C_A[b]
  C_A = Counter(A.split())
  
  print(S)

### FIXED CODE ###

from collections import Counter
N = int(input())
A = list(map(int,input().split()))
C_A = Counter(A)
S = 0
for ca in C_A:
  S += ca * C_A[ca]

Q = int(input())
for q in range(Q):
  b, c = map(int,input().split())
  S += (c - b) * C_A[b]
  C_A[c] += C_A[b]
  C_A[b] = 0
  
  print(S)
### BUGGY CODE ###

import math

n,k=map(int,input().split())
a=sorted([int(i) for i in input().split()],reverse=True)
f=sorted([int(i) for i in input().split()])
c=[[a[i],f[i]] for i in range(n)]
c.sort(key=lambda x:x[0]*x[1],reverse=True)

if n==1:
    print(max(0,(c[0][0]-k)*c[0][1]))
else:
    while True:
        #print(c)
        if k==0 or c[0][0]==0:
            break
        elif c[0][0]*c[0][1]-c[1][0]*c[1][1]==0:
            k-=1
            c[0][0]-=1
        elif c[0][0]*c[0][1]-c[1][0]*c[1][1] < c[0][1]:
            k-=1
            c[0][0]-=1
        else:
            l=math.ceil((c[0][0]*c[0][1]-c[1][0]*c[1][1])/c[0][1])
            m=min(l,c[0][0])
            k-=m
            c[0][0]-=m
        for i in range(n-1):
            if c[i][0]*c[i][1]<=c[i+1][0]*c[i+1][1]:
                c[i],c[i+1]=c[i+1],c[i]
            else:
                break

    #print(c)
    print(c[0][0]*c[0][1])


### FIXED CODE ###

n,k=map(int,input().split())
a=sorted(list(map(int,input().split())))
#こっちは変えられない
f=sorted(list(map(int,input().split())),reverse=True)
l,r=0,10**12
def cal(x):
    global n,f,a,k
    ret=0
    for i in range(n):
        ret+=max(0,a[i]-(x//f[i]))
    #print(ret,x)
    return ret
while l+1<r:
    x=l+(r-l)//2
    if cal(x)<=k:
        r=x
    else:
        l=x
if cal(l)<=k:
    print(l)
else:
    print(r)
### BUGGY CODE ###

n = int(input())
ss = sorted([sorted(input()) for _ in range(n)])
ans = 0
start = 0
for i in range(start, n - 1):
    for j in range(i + 1, n):
        if ss[i] == ss[j]:
            ans += 1
        else:
            start = j
            break
print(ans)

### FIXED CODE ###

n = int(input())
ss = sorted([sorted(input()) for _ in range(n)])
ans = 0
cnt = 1
for i in range(n - 1):
    if ss[i] != ss[i + 1]:
        ans += cnt * (cnt - 1) // 2
        cnt = 0
    cnt += 1
ans += cnt * (cnt - 1) // 2
print(ans)
### BUGGY CODE ###

n = int(input())
d = list(map(int,input().split()))
k = max(d)
i = 0
j = 0
ans = 0
b = 0
s = 0
while i <= k:
  while j <= n-1:
    if d[j] <= i:
      b += 1
    if d[j] > i:
      s += 1
  if b == s:
    ans += 1
  b = 0
  s = 0
  i += 1
print(ans)

### FIXED CODE ###

n = int(input())
d = list(map(int,input().split()))
d.sort()
ans = 0
if n % 2 == 1:
  print(ans)
else:
  ans = d[(n // 2)] - d[(n // 2 - 1)]
  print(ans)
### BUGGY CODE ###

import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

S = read().rstrip()

from collections import defaultdict

INF = 10**9
dp = defaultdict(lambda:INF)
dp[0] = 0

cum = 0
for x in S:
    cum ^= 1<<(x-97)
    x = min(dp[cum^(1<<i)] for i in range(26)) + 1
    if dp[cum] > x:
        dp[cum] = x

answer = max(1,dp[cum])
print(answer)

### FIXED CODE ###

import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

S = read().rstrip()

from collections import defaultdict

INF = 10**9
dp = defaultdict(lambda:INF)
dp[0] = 0

cum = 0
for x in S:
    cum ^= 1<<(x-97)
    x = min(dp[cum^(1<<i)] for i in range(26)) + 1
    if dp[cum] > x:
        dp[cum] = x

answer = max(1,dp[cum])
print(answer)
### BUGGY CODE ###

# 入力、初期化
N = int(input())
tree = [[] for _ in range(N)]
input_list = []
for _ in range(N - 1):
    a, b = map(int, input().split())
    a, b = a - 1, b - 1
    input_list.append([a, b])
    tree[a].append(b)
    tree[b].append(a)

# visitedにノードの色を格納する
visited_edge = [[0] * N for _ in range(N)]


# bfsによる色付けを行う
def bfs(now_node):
    queue = [[tree[now_node], 0, now_node]]
    while queue:
        next_nodes, before_color, now_node = queue.pop(0)
        now_color = 1
        for next_node in next_nodes:
            if not visited_edge[now_node][next_node]:
                if now_color != before_color:
                    visited_edge[now_node][next_node] = now_color
                    visited_edge[next_node][now_node] = now_color
                else:
                    now_color += 1
                    visited_edge[next_node][now_node] = now_color
                    visited_edge[now_node][next_node] = now_color
                queue.append([tree[next_node], now_color, next_node])
                now_color += 1


bfs(0)
max_val = 0
for row in visited_edge:
    tmp_max = max(row)
    if max_val < tmp_max:
        max_val = tmp_max
print(max_val)
for a, b in input_list:
    print(visited_edge[a][b])

### FIXED CODE ###

from collections import deque
# 入力、初期化
N = int(input())
tree = [[] for _ in range(N)]
input_list = []
for _ in range(N - 1):
    a, b = map(int, input().split())
    a, b = a - 1, b - 1
    input_list.append([a, b])
    tree[a].append(b)
    tree[b].append(a)


# visitedにノードの色を格納する
# visited_edge = [[0] * N for _ in range(N)]
dict = {}
'''
# bfsによる色付けを行う
def bfs(now_node, max_val=0):
    queue = deque([[tree[now_node], -1, now_node]])
    while queue:
        next_nodes, before_color, now_node = queue.pop()
        now_color = 1
        for next_node in next_nodes:
            if visited_edge[now_node][next_node] != 0:
                continue
            if now_color == before_color:
                now_color += 1
            if max_val < now_color:
                max_val = now_color
            visited_edge[next_node][now_node] = now_color
            visited_edge[now_node][next_node] = now_color
            queue.appendleft([tree[next_node], now_color, next_node])
            now_color += 1
    return max_val
'''
def bfs(now_node, max_val=0):
    queue = deque([[tree[now_node], -1, now_node]])
    while queue:
        next_nodes, before_color, now_node = queue.pop()
        now_color = 1
        for next_node in next_nodes:
            key = tuple(sorted([now_node, next_node]))
            if not dict.get(key) is None:
                continue
            if now_color == before_color:
                now_color += 1
            if max_val < now_color:
                max_val = now_color
            dict[key] = now_color
            # visited_edge[now_node][next_node] = now_color
            queue.appendleft([tree[next_node], now_color, next_node])
            now_color += 1
    return max_val

ans = bfs(0)
print(ans)
for a, b in input_list:
    # print(visited_edge[a][b])
    print(dict[tuple(sorted([a,b]))])
### BUGGY CODE ###

# from fractions import gcd
# mod = 10 ** 9 + 7
# N = int(input())
# a = list(map(int,input().split()))
# a,b,c = map(int,input().split())
# ans = [0] * N
# math.ceilで切り上げ
# dp = [[0] * 4 for i in range(3)] #2次元配列初期化
# dp = [[[0] * 2 for i in range(3)] for j in range(5)]
# (ord('A'))でASCII出力 Aは65
import math
import statistics
import string


def intinput():
    return int(input())
def listintinput():
    return list(map(int, input().split()))
def splitintinput():
    return map(int, input().split())
def factorialsurplus(x, y, z):  # xからyまでの階乗をzで割ったあまりを求める
    ret = 1
    for i in range(x, y + 1):
        ret = (ret * i) % z
    return (ret)
def isprime(x):
    if x == 1:
        return False
    if x == 2:
        return True
    sq = int(math.sqrt(x))
    for i in range(2,sq+1):
        if x % i == 0:
            return False
    return True
def hcfnaive(a,b):#最大公約数 math.gcdが使えない時の手段として入れとく。pythonが更新されたらいらなくなるはず
    if(b==0):
        return a
    else:
        return hcfnaive(b,a%b)

s = ['']
s[0] = input()
Q = int(input())
rev_count = 0

for i in range(Q):
    a = input()
    if a[0] == "1":
        rev_count += 1
    else:
        b = a.split()
        if rev_count % 2 == 0:
            if b[1] == "1":
                s.insert(0,b[2])
            else:
                s.append(b[2])
        else:
            if b[1] == "1":
                s.append(b[2])
            else:
                s.insert(0,b[2])

if rev_count % 2 == 0:
    print(''.join(s))
else:
    a = ''.join(s)
    print(a[::-1])



### FIXED CODE ###

# from fractions import gcd
# mod = 10 ** 9 + 7
# N = int(input())
# a = list(map(int,input().split()))
# a,b,c = map(int,input().split())
# ans = [0] * N
# math.ceilで切り上げ
# dp = [[0] * 4 for i in range(3)] #2次元配列初期化
# dp = [[[0] * 2 for i in range(3)] for j in range(5)]
# (ord('A'))でASCII出力 Aは65
import math
import statistics
import string
import sys
from array import array
from collections import deque

def intinput():
    return int(input())
def listintinput():
    return list(map(int, input().split()))
def splitintinput():
    return map(int, input().split())
def factorialsurplus(x, y, z):  # xからyまでの階乗をzで割ったあまりを求める
    ret = 1
    for i in range(x, y + 1):
        ret = (ret * i) % z
    return (ret)
def isprime(x):
    if x == 1:
        return False
    if x == 2:
        return True
    sq = int(math.sqrt(x))
    for i in range(2,sq+1):
        if x % i == 0:
            return False
    return True
def hcfnaive(a,b):#最大公約数 math.gcdが使えない時の手段として入れとく。pythonが更新されたらいらなくなるはず
    if(b==0):
        return a
    else:
        return hcfnaive(b,a%b)

s = deque()
s.append(input())
Q = int(input())
rev_count = 0

for i in range(Q):
    a = input()
    if a[0] == "1":
        rev_count += 1
    else:
        b = a.split()
        if rev_count % 2 == 0:
            if b[1] == "1":
                s.appendleft(b[2])
            else:
                s.append(b[2])
        else:
            if b[1] == "1":
                s.append(b[2])
            else:
                s.appendleft(b[2])

if rev_count % 2 == 0:
    print(''.join(s))
else:
    a = ''.join(s)
    print(a[::-1])
### BUGGY CODE ###

N = int(input())
ans = 0
for i in range(1,N+1): #1-N
  first = i; kosu = N//i
  end = kosu*i
  temp = (first+end)*kosu//2
  ans += temp
print(ans)


### FIXED CODE ###

N = int(input())
ans = 0

for i in range(1,N+1):
  num = N//i
  temp = i*(1+num)*num//2
  ans += temp
print(ans)
### BUGGY CODE ###

K,S=map(int,input().split())
ans=0
for i in range(K+1):
    for j in range(K+1):
        for k in range(K+1):
            if i+j+k==S:
                ans+=1
print(ans)

### FIXED CODE ###

K,S=map(int,input().split())
ans=0
for i in range(K+1):
    for j in range(K+1):
        k=S-i-j
        if i+j+k==S:
            if 0<=k<=K:
                ans+=1
print(ans)