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

class UnionFind():
	def __init__(self, size):
		self.table = [-1 for _ in range(size)]

	def find(self, x):
		while self.table[x] >= 0:
			x = self.table[x]
		return x

	def union(self, x, y):
		s1 = self.find(x)
		s2 = self.find(y)
		if s1 != s2:
			if self.table[s1] > self.table[s2]:
				self.table[s2] = s1
			elif self.table[s1] < self.table[s2]:
				self.table[s1] = s2
			else:
				self.table[s1] = s2
				self.table[s2] -= 1
		return


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

uf = UnionFind(n)

for i in range(m):
	x, y = map(int, input().split())
	if uf.find(x - 1) != uf.find(y - 1):
		uf.union(x - 1, y - 1)

ans = 0
for i, pp in enumerate(p):
	if uf.find(pp - 1) == uf.find(i):
		ans += 1

print(ans)

### FIXED CODE ###

class UnionFind():
	def __init__(self, size):
		self.table = [-1 for _ in range(size)]

	def find(self, x):
		if self.table[x] < 0:
			return x
		else:
			self.table[x] = self.find(self.table[x]) #xをxの根に直接つなぐ
			return self.table[x]

	def union(self, x, y):
		s1 = self.find(x)
		s2 = self.find(y)
		if s1 == s2:
			return
		else:
			st1 = self.table[s1]
			st2 = self.table[s2]
			if st1 > st2:
				self.table[s2] = s1
			elif st1 < st2:
				self.table[s1] = s2
			else:
				self.table[s1] = s2
				self.table[s2] -= 1


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

uf = UnionFind(n)

for i in range(m):
	x, y = map(int, input().split())
	uf.union(x - 1, y - 1)

ans = 0
for i, pp in enumerate(p):
	if pp - 1 == i:
		ans += 1
	elif uf.find(pp - 1) == uf.find(i):
		ans += 1

print(ans)
### BUGGY CODE ###

import numpy as np
R, G, B, N= map(int, input().split())

A=[R,G,B]
A.sort()
A=np.array(A)

count=0

shou_max = N//A[2]
warukazu2 = np.arange(0, shou_max+1)
A3 = N-warukazu2*A[2]

for x in A3:
    shou_max = x//A[1]
    warukazu1 = np.arange(0, shou_max+1)
    A2 = x-warukazu1*A[1]
    
    for y in A2:
        if y%A[0]==0:
            count+=1
print(count)

### FIXED CODE ###

#問題B
import numpy as np
R, G, B, N= map(int, input().split())

A=[R,G,B]
A.sort()
A=np.array(A)

count=0

shou_max = N//A[2]
warukazu2 = np.arange(0, shou_max+1)
A3 = N-warukazu2*A[2]

for x in A3:
    shou_max = x//A[1]
    warukazu1 = np.arange(0, shou_max+1)
    A2 = x-warukazu1*A[1]
    
    count+=np.sum(A2%A[0]==0)
#     A2*A[0]==0
#     for y in A2:
#         if y%A[0]==0:
#             count+=sum_
print(count)
### BUGGY CODE ###

n, k = map(int, input().split())
a = tuple(map(int, input().split()))
# 累積積を求める
acc = []
acc.append(a[0])
for v in a[1:]:
    acc.append(acc[-1]*v)
cand = []
cand.append(acc[k-1])
tmp = k
while tmp <= n-1:
    cand.append(acc[tmp]//acc[tmp-k])
    tmp += 1
for i in range(len(cand)-1):
    if cand[i] < cand[i+1]:
        print("Yes")
    else:
        print("No")

### FIXED CODE ###

n, k = map(int, input().split())
a = tuple(map(int, input().split()))
for i in range(n-k):
    if a[i] < a[i+k]:
        print("Yes")
    else:
        print("No")
### BUGGY CODE ###

from math import ceil


def main(N, Q, S, lr_list):
    res = []
    for lr in lr_list:
        l, r = lr
        res.append(S[l-1:r].count("AC"))
    return res


if __name__ == "__main__":
    N, Q = list(map(int, input().split()))
    S = input()
    lr_list = []
    for _ in range(Q):
        lr_list.append(tuple(map(int, input().split())))
    res = main(N, Q, S, lr_list)
    for r in res:
        print(r)


### FIXED CODE ###

def main(N, Q, S, lr_list):
    chars = list(S)

    s_list = [0]
    for i in range(N):
        if i+1 < N and chars[i] == 'A' and chars[i+1] == 'C':
            s_list.append(s_list[i] + 1)
        else:
            s_list.append(s_list[i])

    res_list = []
    for lr in lr_list:
        l, r = lr
        l -= 1
        r -= 1
        res_list.append(s_list[r] - s_list[l])

    return res_list


if __name__ == "__main__":
    N, Q = list(map(int, input().split()))
    S = input()
    lr_list = []
    for _ in range(Q):
        lr_list.append(tuple(map(int, input().split())))
    res = main(N, Q, S, lr_list)
    for r in res:
        print(r)
### BUGGY CODE ###

n = int(input())
aa =list(map(int, input().split()))

list1 =[0] * n
cnt = 0  
for i in range(n-1):
  if aa[i+1] > aa[i]:
    list1[i+1] = 1
  elif aa[i+1] < aa[i]:
    list1[i+1] = -1
  elif aa[i+1] == aa[i]:    
    list1[i+1] = 0

  
while 1 in list1 and -1 in list1:
  if list1[1] == 1:
    for i in range(len(list1)):
      if list1[i] == -1:
        cnt += 1
        list1[i] = 0
        list1 = list1[i:]
        
        break
        
  elif list1[1] == -1:
    for i in range(len(list1)):
      if list1[i] == 1:
        cnt += 1
        list1[i] = 0
        list1 = list1[i:]
        
        break
        
  elif list1[1] == 0:
    for i in range(len(list1)):
      if list1[i] == 1 or list1[i] == -1:
        cnt += 1
        list1[i] = 0
        list1 = list1[i:]
       
        break
  
print(cnt+1)

### FIXED CODE ###

n = int(input())
aa =list(map(int, input().split()))

list1 =[0] * n
cnt = 1  
for i in range(n-1):
  if aa[i+1] > aa[i]:
    list1[i+1] = 1
  elif aa[i+1] < aa[i]:
    list1[i+1] = -1
  elif aa[i+1] == aa[i]:    
    list1[i+1] = 0

while 1 in list1 and -1 in list1:
  del list1[:max(list1.index(1), list1.index(-1))]
  list1[0] = 0
  cnt += 1
  
print(cnt)
### BUGGY CODE ###

import sys
INF=100000000
def frog(i,K,h,dp):
    global INF
    if dp[i]!=INF:
        return dp[i]
    else:
        if i==1:
            dp[i]=0
            return dp[i]
        elif i==2:
            dp[i]=abs(h[1]-h[0])
            return dp[i]
        else:
            cost=[]
            for k in range(1,K+1):
                if i-k-1>=0:
                    cost.append(frog(i-k,K,h,dp)+abs(h[i-1]-h[i-k-1]))
                    continue
                break
            dp[i]=min(cost)
            return dp[i]
sys.setrecursionlimit(INF)
N,K=map(int,input().split())
h=list(map(int,input().split()))
dp=[INF for i in range(N+1)]
print(frog(N,K,h,dp))


### FIXED CODE ###

import numpy as np
N,K=map(int,input().split())
h=list(map(int,input().split()))
h=np.array(h)
cost=np.zeros(N+1)
cost[1]=0
cost[2]=abs(h[1]-h[0])
for i in range(3,N+1):
    x=1 if i-K<=1 else i-K
    cost[i]=(cost[x:i]+abs(h[i-1]-h[x-1:i-1])).min()
print(int(cost[N]))
### BUGGY CODE ###

n = int(input())
l = list(map(int, input().split()))
ans = [l[0]]

for i in range(n-1):
    l_new = sorted(l[0:i+1])
    if l_new[0] >=l[i+1]:
        ans.append(l[i+1])
        
print(len(ans))

### FIXED CODE ###

n = int(input())
l = list(map(int, input().split()))
Min = l[0]
count = 0

for i in range(n):
    if Min >= l[i]:
        Min = l[i]
        count += 1
        
print(count)
### BUGGY CODE ###

def gcd(a, b):
    while b:
        a, b = b, a % b
    return a


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


MOD = 10**9 + 7
N = int(input())
A = list(map(int, input().split()))

l = A[0]
for a in A:
  if l%a != 0:
    l = lcm(l, a)

ans = 0
for a in A:
  ans += (l//a) % MOD
  ans %= MOD

print(ans)

### FIXED CODE ###

def gcd(a, b):
    while b:
        a, b = b, a % b
    return a


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


def power(n, r, mod=10**9+7):
    if r == 0: return 1
    if r%2 == 0:
        return power(n*n % mod, r//2, mod) % mod
    if r%2 == 1:
        return n * power(n, r-1, mod) % mod


MOD = 10**9 + 7
N = int(input())
A = list(map(int, input().split()))

l = A[0]
for a in A:
  t = l%a
  if t != 0:
    l = lcm(l, a)

l %= MOD
ans = 0
for a in A:
  ans += (l * power(a, MOD-2)) % MOD
  ans %= MOD

print(ans)
### BUGGY CODE ###

#!/usr/bin/env python
# -*- coding: utf-8 -*-

def solve(s, MAX):
    if s < 3:
        return 0
    elif s < 6:
        return 1
    
    res = 1
    s -= 3
    while s > 2:
        res += solve(s, MAX)
        res %= MAX
        s -= 1
    return res


MAX=10**9+7
s = int(input())
res = solve(s, MAX)
print(res)



### FIXED CODE ###

#!/usr/bin/env python
# -*- coding: utf-8 -*-

def solve(s, MAX):
    if s < 3:
        return 0
    elif s < 6:
        return 1
    a = 1
    b = 1
    c = 1
    num = 6
    while num <= s:
        tmp = a
        a = b
        b = c
        c += tmp
        c %= MAX
        num += 1
    return c


MAX=10**9+7
s = int(input())
res = solve(s, MAX)

print(res)
### BUGGY CODE ###

a, b = map(int, input().split())
cnt = 0
for i in range(a+1):
    for j in range(a+1):
        for k in range(a+1):
            if i + j + k == b:
                cnt += 1
print(cnt)

### FIXED CODE ###

K, S = map(int, input().split())
cnt = 0
for x in range(K+1):
    for y in range(K+1):
        z = S - x - y
        if 0 <= z <= K:
            cnt += 1
print(cnt)
### BUGGY CODE ###

n = int(input())
def f(i):
  if i >= 2:
    li = f(i-1) + f(i-2)
  elif i == 1:
    li = 1
  elif i == 0:
    li = 2
  return li

print(f(n))

### FIXED CODE ###

n = int(input())
l = [2, 1]
if n == 1:
  print(1)
else:
  for i in range(2, n+1):
    l.append(l[i-1] + l[i-2])
  print(l[n])
### BUGGY CODE ###

def solve():
    max_weight, list_of_weight_and_value = read()
    result = think(max_weight, list_of_weight_and_value)
    write(result)


def read():
    n, max_weight = read_int(2)
    list_of_weight_and_value = []
    for i in range(n):
        list_of_weight_and_value.append(read_int(2))
    return max_weight, list_of_weight_and_value


def read_int(n):
    return list(map(lambda x: int(x), read_line().split(' ')))[:n]


def read_line(n=0):
    if n == 0:
        return input().rstrip()
    else:
        return input().rstrip()[:n]


def think(max_weight, list_of_weight_and_value):
    MAX_WEIGHT = 10 ** 5
    MAX_N = 100
    INVALID_VALUE = MAX_WEIGHT * MAX_N + 1

    # dp[w] means max value at total weight 'w'
    dp = [INVALID_VALUE for x in range(max_weight + len(list_of_weight_and_value) + 1)]
    dp[0] = 0

    for weight, value in list_of_weight_and_value:
        for i in range(len(dp) - 1, -1, -1):
            if dp[i] != INVALID_VALUE and i + weight < len(dp):
                if dp[i + weight] == INVALID_VALUE:
                    dp[i + weight] = dp[i] + value
                else:
                    dp[i + weight] = max(dp[i + weight], dp[i] + value)
    return max(filter(lambda x: x != INVALID_VALUE, dp[:max_weight + 1]))


def write(result):
    print(result)


if __name__ == '__main__':
    solve()

### FIXED CODE ###

def solve():
    max_weight, list_of_weight_and_value = read()
    result = think(max_weight, list_of_weight_and_value)
    write(result)


def read():
    n, max_weight = read_int(2)
    list_of_weight_and_value = []
    for i in range(n):
        list_of_weight_and_value.append(read_int(2))
    return max_weight, list_of_weight_and_value


def read_int(n):
    return list(map(lambda x: int(x), read_line().split(' ')))[:n]


def read_line(n=0):
    if n == 0:
        return input().rstrip()
    else:
        return input().rstrip()[:n]


def think(max_weight, list_of_weight_and_value):
    MAX_WEIGHT = 10 ** 5
    MAX_N = 100
    INVALID_VALUE = -1

    # dp[w] means max value at total weight 'w'
    dp = [INVALID_VALUE for x in range(max_weight + len(list_of_weight_and_value) + 1)]
    dp[0] = 0

    for weight, value in list_of_weight_and_value:
        for i in range(len(dp) - 1, -1, -1):
            if dp[i] != INVALID_VALUE and i + weight < len(dp):
                if dp[i + weight] == INVALID_VALUE:
                    dp[i + weight] = dp[i] + value
                else:
                    dp[i + weight] = max(dp[i + weight], dp[i] + value)
    return max(filter(lambda x: x != INVALID_VALUE, dp[:max_weight + 1]))


def write(result):
    print(result)


if __name__ == '__main__':
    solve()
### BUGGY CODE ###

n,m=map(int,input().split())
a=[]
for i in range(m):
    a.append(list(map(int,input().split())))
a.sort()
#print(a)
d=[]
for i in range(m):
    if a[i][0]==1:
        d.append(a[i][1])
    else:
        break
e=[]
for i in range(m):
    if a[i][1]==n:
        e.append(a[i][0])
if len(d)>=len(e):
    for i in range(len(e)):
        if e[i] in d:
            print('POSSIBLE')
            exit()
    print('IMPOSSIBLE')
else:
    for i in range(len(d)):
        if d[i] in e:
            print('POSSIBLE')
            exit()
    print('IMPOSSIBLE')
#print([d[0],n])

### FIXED CODE ###

n,m=map(int,input().split())
a=[]
for i in range(m):
    a.append(list(map(int,input().split())))
a.sort()
#print(a)
d=[]
for i in range(m):
    if a[i][0]==1:
        d.append(a[i][1])
    else:
        break
e=[]
for i in range(m):
    if a[i][1]==n:
        e.append(a[i][0])
if len(set(e) & set(d))!=0:
    print('POSSIBLE')
else:
    print('IMPOSSIBLE')
### BUGGY CODE ###

N,M = map(int,input().split())
A = [0]*M
B = [0]*M
for i in range(M):
    A[i],B[i] = map(lambda x:int(x)-1,input().split())

def check_connect(A,B):
    a = cnt[A]
    b = cnt[B]
    if a==-1 and b==-1:
        connect.append([A,B])
        cnt[A] = len(connect)-1
        cnt[B] = cnt[A]
        return 1
    if a == b:
        return 0
    if a == -1:
        a,b,A,B = b,a,B,A
    if b==-1:
        connect[a] += [B]
        cnt[B] = a
        return len(connect[a])-1
        
    tmp1 = len(connect[a])
    tmp2 = len(connect[b])
    if tmp2 > tmp1:
        a,b = b,a
    connect[a] = connect[a] + connect[b]
    for i in connect[b]:
        cnt[i] = a
    tmp3 = tmp1+tmp2
    connect[b] = []
    return (tmp3*(tmp3-1)-tmp1*(tmp1-1)-tmp2*(tmp2-1))//2

connect = []
cnt = [-1]*N
dfubensa = [0]*M
for i in range(M-1,-1,-1):
    dfubensa[i] = check_connect(A[i],B[i])

fubensa = dfubensa[0]
print(fubensa)
for i in range(1,M):
    fubensa = fubensa+ dfubensa[i]
    print(fubensa)

### FIXED CODE ###

N,M = map(int,input().split())
A = [0]*M
B = [0]*M
for i in range(M):
    A[i],B[i] = map(lambda x:int(x)-1,input().split())

def check_connect(A,B):
    a = cnt[A]
    b = cnt[B]
    if a==-1 and b==-1:
        connect.append([A,B])
        cnt[A] = len(connect)-1
        cnt[B] = cnt[A]
        return 1
    if a == b:
        return 0
    if a == -1:
        a,b,A,B = b,a,B,A
    if b==-1:
        connect[a] += [B]
        cnt[B] = a
        return len(connect[a])-1
        
    tmp1 = len(connect[a])
    tmp2 = len(connect[b])
    if tmp2 > tmp1:
        a,b = b,a
    connect[a] += connect[b]
    for i in connect[b]:
        cnt[i] = a
    tmp3 = tmp1+tmp2
    connect[b] = []
    return (tmp3*(tmp3-1)-tmp1*(tmp1-1)-tmp2*(tmp2-1))//2

connect = []
cnt = [-1]*N
dfubensa = [0]*M
for i in range(M-1,-1,-1):
    dfubensa[i] = check_connect(A[i],B[i])

fubensa = dfubensa[0]
print(fubensa)
for i in range(1,M):
    fubensa += dfubensa[i]
    print(fubensa)
### BUGGY CODE ###

#167_d
n, k = map(int, input().split())
a = list(map(int, input().split()))

r = []

now = 1
while True:
    r.append(now)
    now = a[now - 1] 
    if now in r:
        roop = r[r.index(now):]
        break
        
if len(r) - 1 >= k: #ループに入らないとき
    print(r[k])
else:#ループに入ったとき
    print(roop[(k-len(r)) % len(roop)])
    

### FIXED CODE ###

#167_d
n, k = map(int, input().split())
a = list(map(int, input().split()))

r = []
check = [0]*len(a)
now = 1
count = 0

while True:
    r.append(now)
    now = a[now - 1]
    
    if check[now - 1] == 1:
        roop = r[r.index(now):]
        break
    check[now - 1] += 1
    
if len(r) - 1 >= k: #ループに入らないとき
    print(r[k])
else:#ループに入ったとき
    print(roop[(k-len(r)) % len(roop)])
### BUGGY CODE ###

import sys
import math
MOD = 10 ** 9 + 7

def extgcd(a,b):
    r = [1,0,a]
    w = [0,1,b]
    while w[2]!=1:
        q = r[2]//w[2]
        r2 = w
        w2 = [r[0]-q*w[0],r[1]-q*w[1],r[2]-q*w[2]]
        r = r2
        w = w2
    #[x,y]
    return [w[0],w[1]]

def mod_inv(a):
    x = extgcd(a,MOD)[0]
    return (MOD+x%MOD)%MOD

input = sys.stdin.readline
n,a,b = map(int,input().split())
x1 = 1

a = min(a,n-a)
b = min(b,n-b)
if a > b:
    a,b = b,a

for i in range(n-a+1,n+1):
    x1 = x1 * i % MOD
for i in range(1,a+1):
    x1 = x1 * mod_inv(i)

x2 = x1
for i in range(n-b+1,n-a+1):
    x2 = x2 * i % MOD
for i in range(a+1,b+1):
    x2 = x2 * mod_inv(i)
    x2 = x2 % MOD

t = []
nn = n
while nn > 0:
    t.append(nn % 2)
    nn //= 2
x0 = 1
for i in range(len(t)):
    x0 = x0 ** 2
    x0 = x0 % MOD
    if t[len(t)-i-1] == 1:
        x0 *= 2
        x0 = x0 % MOD
print ((x0 - x1 - x2 - 1) % MOD)




### FIXED CODE ###

import sys
import math
MOD = 10 ** 9 + 7

def extgcd(a,b):
    r = [1,0,a]
    w = [0,1,b]
    while w[2]!=1:
        q = r[2]//w[2]
        r2 = w
        w2 = [r[0]-q*w[0],r[1]-q*w[1],r[2]-q*w[2]]
        r = r2
        w = w2
    #[x,y]
    return [w[0],w[1]]

def mod_inv(a):
    x = extgcd(a,MOD)[0]
    return (MOD+x%MOD)%MOD

input = sys.stdin.readline
n,a,b = map(int,input().split())
x1 = 1

a = min(a,n-a)
b = min(b,n-b)
if a > b:
    a,b = b,a

for i in range(n-a+1,n+1):
    x1 = x1 * i % MOD
x11 = 1
for i in range(1,a+1):
    x11 = x11 * i % MOD
x1 = x1 * mod_inv(x11) % MOD

x2 = x1
for i in range(n-b+1,n-a+1):
    x2 = x2 * i % MOD
x21 = 1
for i in range(a+1,b+1):
    x21 = x21 * i % MOD
x2 = x2 * mod_inv(x21) % MOD

t = []
nn = n
while nn > 0:
    t.append(nn % 2)
    nn //= 2
x0 = 1
for i in range(len(t)):
    x0 = x0 ** 2
    x0 = x0 % MOD
    if t[len(t)-i-1] == 1:
        x0 *= 2
        x0 = x0 % MOD
print ((x0 - x1 - x2 - 1) % MOD)
### BUGGY CODE ###

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

C = [0] * (3 * 10 ** 5 + 5)
rC = [0] * (3 * 10 ** 5 + 5)
MOD = 998244353

C[1] = 1
rC[1] = 1
for i in range(2, N + 1):
    C[i] = C[i - 1] * i % MOD

rC[N] = pow(C[N], MOD - 2, MOD)

for i in range(N, 1, -1):
    rC[i - 1] = rC[i] * i


def calc(n, m):
    return C[n] * rC[n - m] * rC[m]

num = 0
for i in range(N + 1):
    if (K - A * i) % B == 0:
        j = (K - i * A) // B
        if 0 <= j <= N:
            num += calc(N, i) * calc(N, j) % MOD

if K == 0:
    print(1)
else:
    print(num)

### FIXED CODE ###

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

C = [0] * (3 * 10 ** 5 + 5)
rC = [0] * (3 * 10 ** 5 + 5)
MOD = 998244353

C[0] = 1
rC[0] = 1
C[1] = 1
rC[1] = 1
for i in range(2, N + 1):
    C[i] = C[i - 1] * i % MOD

rC[N] = pow(C[N], MOD - 2, MOD)

for i in range(N, 1, -1):
    rC[i - 1] = rC[i] * i % MOD


def calc(n, m):
    return C[n] * rC[n - m] * rC[m] % MOD

num = 0
for i in range(N + 1):
    if (K - A * i) % B == 0:
        j = (K - i * A) // B
        if 0 <= j <= N:
            num += calc(N, i) * calc(N, j)
            num = num % MOD

if K == 0:
    print(1)
else:
    print(num % MOD)
### BUGGY CODE ###

N = int(input())
A = list(map(int, input().split()))
A.sort()
# print (A)
ans = 0
for i in range(N - 1, -1, -1):
    a = A[i]
    flag = True
    for j in range(i):
        if a % A[j] == 0:
            flag = False
            break
    if i + 1 < N and A[i] == A[i + 1]:
        flag = False

    if flag:
        ans += 1

print (ans)

### FIXED CODE ###

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

ans = 0

check = [True] * (10 ** 6 + 1)
for i in range(N):
    a = A[i]
    if not check[a]:
        continue
    if (i >= 1 and A[i] != A[i - 1]) or i == 0:
        tmp = a
        while tmp <= 10 ** 6:
            check[tmp] = False
            tmp += a
    else:
        continue
    if i + 1 < N and A[i] == A[i + 1]:
        continue
    # print (a)
    ans += 1

print (ans)
### BUGGY CODE ###

import sys
sys.setrecursionlimit(10 ** 7)

s = input()
t = input()
q = int(input())
abcd = [tuple(map(int,input().split())) for i in range(q)]

def to_one(word):
    if len(word)==0:
        return 'C'

    if len(word)==1:
        return word

    word = word.replace('AAA', '')
    word = word.replace('BBB', '')

    word = word.replace('AB', '')
    word = word.replace('BA', '')

    word = word.replace('AA', 'B')
    word = word.replace('BB', 'A')

    return to_one(word)


for a,b,c,d in abcd:

    s_i = s[a-1:b]
    t_i = t[c-1:d]

    if to_one(s_i) == to_one(t_i):
        print('YES')
    else:
        print('NO')



### FIXED CODE ###

from itertools import accumulate

s = input()
t = input()
q = int(input())
abcd = [tuple(map(int,input().split())) for i in range(q)]

s_number = [2 if ab == 'B' else 1 for ab in s]
t_number = [2 if ab == 'B' else 1 for ab in t]

s_sum = [0] + s_number
s_sum = list(accumulate(s_sum))

t_sum = [0] + t_number
t_sum = list(accumulate(t_sum))

for a,b,c,d in abcd:

    s_i = s_sum[b]-s_sum[a-1]
    t_i = t_sum[d]-t_sum[c-1]

    if s_i%3 == t_i%3:
        print('YES')
    else:
        print('NO')
### BUGGY CODE ###

import sys

sys.setrecursionlimit(10 ** 6)
input = sys.stdin.readline
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")

def main():
    n, k = map(int, input().split())
    k2 = k * 2
    t = [[0] * k2 for _ in range(k2)]
    for _ in range(n):
        x, y, c = input().split()
        x, y = int(x), int(y)
        if c == "W": x += k
        x %= k2
        y %= k2
        t[x][y] += 1
        x = (x + k) % k2
        y = (y + k) % k2
        t[x][y] += 1
    # p2D(t)
    # print()
    for i in range(k2):
        ti = t[i]
        for j in range(1, k2):
            ti[j] += ti[j - 1]
    for j in range(k2):
        for i in range(1, k2):
            t[i][j] += t[i - 1][j]
    # p2D(t)
    ans = 0
    for i in range(k - 1, k2):
        for j in range(k - 1, k2):
            cur = t[i][j]
            if i - k >= 0: cur -= t[i - k][j]
            if j - k >= 0: cur -= t[i][j - k]
            if i >= k and j >= k: cur += t[i - k][j - k]
            ans=max(ans,cur,n-cur)
    print(ans)

main()


### FIXED CODE ###

import sys

sys.setrecursionlimit(10 ** 6)
input = sys.stdin.readline
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")

def main():
    n, k = map(int, input().split())
    k2 = k * 2
    t = [[0] * k2 for _ in range(k2)]
    for _ in range(n):
        x, y, c = input().split()
        x, y = int(x), int(y)
        if c == "W": x += k
        x %= k2
        y %= k2
        t[x][y] += 1
        x = (x + k) % k2
        y = (y + k) % k2
        t[x][y] += 1
    # p2D(t)
    # print()
    for i in range(k2):
        ti = t[i]
        for j in range(1, k2):
            ti[j] += ti[j - 1]
    for j in range(k2):
        for i in range(1, k2):
            t[i][j] += t[i - 1][j]
    # p2D(t)
    ans = 0
    for i in range(k - 1, k2):
        for j in range(k - 1, k2):
            cur = t[i][j]
            if i - k >= 0: cur -= t[i - k][j]
            if j - k >= 0: cur -= t[i][j - k]
            if i >= k and j >= k: cur += t[i - k][j - k]
            ans=max(ans,cur,n-cur)
    print(ans)

main()
### BUGGY CODE ###

#ALDS1_4-B BinarySearch
import heapq

S = []
T = []
n=input()
S = input().split()
q=input()
T = input().split()
c=0
heapq.heapify(S)
for t in T:
    if(t in S):c+=1
        
print(c)

### FIXED CODE ###

#ALDS1_4-B BinarySearch
input()
S=input().split()
input()
T=input().split()
print(len(set(S)&set(T)))
### BUGGY CODE ###

L,R = map(int,input().split())
A = []

if 2019<=L-R:
  A+=[0]
else:
  for i in range(L,R+1):
    for j in range(L,i):
      A+=[((i%2019)*(j%2019))%2019]

print(min(A))

### FIXED CODE ###

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

if a[1]-a[0]>=2019:
  print(0)
else:
  for i in range(a[0],a[1]+1):
    for j in range(a[0],i):
      c = (i*j)%2019
      b.append(c)
  else:
    print(min(b))