Harryxun/stf_run huggingface dataset:
n, x, m = map(int,input().split())
rem = [0] * m
chk = [0] * (m + 1)
rem[0] = x

for i in range(1,m):
  rem[i] = (rem[i - 1] ** 2) % m
  chk[rem[i - 1] ** 2 % m] += 1
  if chk[rem[i - 1] ** 2 % m] > 1:
    temp1 = rem[i - 1] ** 2 % m
    temp2 = i
    break

for i in range(m):
  if rem[i] == temp1:
    temp3 = i
    break

num = (n - temp3) // (temp2 - temp3)   

S = sum(rem[:temp3]) + sum(rem[temp3:temp2]) * num + sum(rem[temp3:n - (num * (temp2 - temp3))])
print(S)
    
  

### FIXED CODE ###

n, x, m = map(int,input().split())
rem = [0] * m
chk = [0] * (m + 1)
rem[0] = x
if x == 0:
  print(0)
  exit()

for i in range(1,m):
  rem[i] = (rem[i - 1] ** 2) % m
  if chk[rem[i - 1] ** 2 % m] > 1:
    temp1 = (rem[i - 1] ** 2) % m
    temp2 = i
  else:
    temp1 = (rem[i - 1] ** 2) % m
    temp2 = i

for i in range(m):
  if rem[i] == temp1:
    temp3 = i
    break

if temp2 != temp3:
  num = (n - temp3) // (temp2 - temp3)
  S = sum(rem[:temp3]) + sum(rem[temp3:temp2]) * num + sum(rem[temp3:n - (num * (temp2 - temp3))])
  print(S)
else:
  print(sum(rem))
n, k, c = map(int, input().split())
s = list(input())
cnt = s.count('o')
os = [i for i,x in enumerate(s) if x=='o']

from collections import deque

q = deque(os.copy())
_q1 = q.popleft()
m = k-1
l = [_q1]
while q and m > 0:
    _q2 = q.popleft()
    if _q2 - _q1 > c:
        l.append(_q2)
        _q1 = _q2
        m -= 1
        if m == 0:
            q = deque([])
    else:
        pass

q = deque(os.copy())
_q2 = q.pop()
m = k-1
r = [_q2]
while q and m > 0:
    _q1 = q.pop()
    if _q2 - _q1 > c:
        r.append(_q1)
        _q2 = _q1
        m -= 1
        if m == 0:
            q = deque([])
    else:
        pass

r = list(reversed(r))

# print(r)

ans = 0
for _l, _r in zip(l, r):
    if _l == _r:
        print(_l+1)
        ans = 1


### FIXED CODE ###

n, k, c = map(int, input().split())
s = list(input())
# cnt = s.count('o')
os = [i for i,x in enumerate(s) if x=='o']

from collections import deque

q = deque(os.copy())
_q1 = q.popleft()
m = k-1
l = [_q1]
if m > 0:
    while q:
        _q2 = q.popleft()
        if _q2 - _q1 > c:
            l.append(_q2)
            _q1 = _q2
            m -= 1
            if m == 0:
                q = deque([])
        else:
            pass

q = deque(os.copy())
_q2 = q.pop()
m = k-1
r = [_q2]
if m > 0:
    while q:
        _q1 = q.pop()
        if _q2 - _q1 > c:
            r.append(_q1)
            _q2 = _q1
            m -= 1
            if m == 0:
                q = deque([])
        else:
            pass

r = list(reversed(r))

ans = 0
for _l, _r in zip(l, r):
    if _l == _r:
        print(str(_l+1))
        ans = 1

if ans == 0:
    print()
N,M = map(int,input().split())
a_list=[]
pass_1= []
for i in range(M):
    a = list(map(int,input().split())
    if(a[0]==1):
        pass_1.append(a[1])
    else:
        a_list.append(a)
    
for j in pass_1:
    if([j,N] in a):
        print("POSSIBLE")
        exit()
print("IMPOSSIBLE")

### FIXED CODE ###

N,M = map(int,input().split())
a_list=[]
pass_1= []
for i in range(M):
    a = list(map(int,input().split()))
    if(a[0]==1):
        pass_1.append(a[1])
    elif(a[1]==N):
        a_list.append(a[0])
    
if list(set(pass_1) & set(a_list)):
    print('POSSIBLE')
else:
    print('IMPOSSIBLE')
import numpy as np
def nroot(a, n, x=1.0, eps=1e-15):
    x = np.sqrt(a)
    while abs(a - x**n) > eps:
        x = ( (n-1)*x + a/(x**(n-1)) ) / n
    return x
a,b,c = map(int, input().split())


if nroot(a,2) + nroot(b,2) < nroot(c,2) :
    print("Yes")
else:
    print("No")

### FIXED CODE ###

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


if  c-a-b >0 and (c-a-b)*(c-a-b) > 4*a*b :
    print("Yes")
else:
    print("No")
a, b, c, k=input().split()
a=int(a)
b=int(b)
c=int(c)
k=int(k)
ans=0

if a>0 and k>0 and a<=k:
  k=k-a
  ans=ans+a
elif a>0 and k>0 and a>k:
  ans=ans+k
   k=0

while b>0 and k>0:
  b+=-1
  k+=-1

while c>0 and k>0:
  ans+=-1
  c+=-1
  k+=-1
  
print(ans)

### FIXED CODE ###

a, b, c, k=input().split()
a=int(a)
b=int(b)
c=int(c)
k=int(k)
ans=0

if a>0 and k>0 and a<=k:
  k=k-a
  ans=ans+a
elif a>0 and k>0 and a>k:
  ans=ans+k
  k=0

if b>0 and k>0 and b<=k:
  k=k-b
elif b>0 and k>0 and b>k:
  k=0
  
if c>0 and k>0 and c<=k:
  k=k-c
  ans=ans-c
elif c>0 and c>0 and c>k:
  ans=ans-k
  k=0

  
print(ans)
string=inout()
t=False
for i in range (len(string)):
  if string[i]==7:
    t=True
if t==True:
  print("YES")
else:
  print("NO")

### FIXED CODE ###

string=input()
if "7" in string:
  print('Yes')
else:
  print('No')
num=input()
j=0
for i in range(1,10):
  j+=num//10^i
print(num%j==0)

### FIXED CODE ###

num=input()
num1=num
j=0
while int(num)>0:
  j+=int(num)%10
  num = int(num)/10
if int(num1)%j==0:
  print("Yes")
else:
  print("No")
c=list(map(int, input().split()))

W = c[0]
H = c[1]
x = c[2]
y = c[3]



if W*y <= float((W*H)/2):
    S1 = W*y
else:
    S1 = W*H - W*y

if H*x <= float((W*H)/2):
    S2 = H*x
else:
    S2 = W*H - H*x

if S1 < S2:
    Sm = S2
    co = 0
elif S1 > S2:
    Sm = S1
    co = 0
else:
    Sm = S1
    co = 1
    
print(Sm,co)

### FIXED CODE ###

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

if x < a:
    print(0)
else:
    print(10)
import sys, math

sys.setrecursionlimit(10 ** 9)

N = int(input())
if N == 1:
    print(0)
    exit()

def f(n):
    arr = list()
    temp = n
    for i in range(2, int(math.sqrt(n)) + 1):
        if temp % i == 0:
            cnt = 0
            while temp % i == 0:
                cnt += 1
                temp //= i
            arr.append([i, cnt])

    if temp != 1:
        arr.append([temp, 1])

    if len(arr) == 0:
        arr.append([n, 1])

    return arr


t = f(N)
res = 0
A = [0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6]
for b, a in t:
    res += int(A[a])
print(res // 1)


### FIXED CODE ###

import math

def f(n):
    arr = list()
    temp = n
    for i in range(2, int(math.sqrt(n)) + 1):
        if temp % i == 0:
            cnt = 0
            while temp % i == 0:
                cnt += 1
                temp //= i
            arr.append(tuple([i, cnt]))

    if temp != 1:
        tup = tuple([temp, 1])
        arr.append(tup)

    if len(arr) == 0:
        tup = tuple([n, 1])
        arr.append(tup)

    return arr

N = int(input())
if N == 1:
    print(0)
    exit()

t = f(N)
res = 0

for a in t:
    cnt = 0
    c = 0
    while cnt <= a[1]:
        c += 1
        cnt += c
    res += c - 1
    
print(res)
N, A, B, C = [int(i) for i in input().split()]

ans = list()
l = list()

for i in range(N):
    l.append(input())


def dfs(i, a, b, c):
    if i == N:
        return True

    ss = l[i]
    if ss == 'AB':
        if a == 0 and  b == 0:
            return False
        if a > 0 and dfs(i + 1, a - 1, b + 1, c):
            ans.append('B')
            return True
        if b > 0 and dfs(i + 1, a + 1, b - 1, c):
            ans.append('A')
            return True
        else:
            return False
    elif ss == 'AC':
        if a == 0 and  c == 0:
            return False
        if a > 0 and dfs(i + 1, a - 1, b, c + 1):
            ans.append('C')
            return True
        if c > 0 and dfs(i + 1, a + 1, b, c - 1):
            ans.append('A')
            return True
        else:
            return False
    elif ss == 'BC':
        if b == 0 and  c == 0:
            return False
        if b > 0 and dfs(i + 1, a, b - 1, c + 1):
            ans.append('C')
            return True
        if c > 0 and dfs(i + 1, a, b + 1, c - 1):
            ans.append('B')
            return True
        else:
            return False

dfs(0, A, B, C)

if len(ans) > 0:
    print('Yes')
    for a in reversed(ans):
        print(a)
else:
    print('No')
~

### FIXED CODE ###

import sys
sys.setrecursionlimit(10 ** 5 + 10)

N, A, B, C = [int(i) for i in input().split()]

ans = list()
l = list()

for n in range(N):
    l.append(input())

def dfs(i, a, b, c):
    if i == N:
        return True

    ss = l[i]
    if ss == 'AB':
        if a == 0 and b == 0:
            return False
        if b > 0 and dfs(i + 1, a + 1, b - 1, c):
            ans.append('A')
            return True
        if a > 0 and dfs(i + 1, a - 1, b + 1, c):
            ans.append('B')
            return True
    if ss == 'AC':
        if a == 0 and c == 0:
            return False
        if c > 0 and dfs(i + 1, a + 1, b, c - 1):
            ans.append('A')
            return True
        if a > 0 and dfs(i + 1, a - 1, b, c + 1):
            ans.append('C')
            return True
    if ss == 'BC':
        if b == 0 and c == 0:
            return False
        if c > 0 and dfs(i + 1, a, b + 1, c - 1):
            ans.append('B')
            return True
        if b > 0 and dfs(i + 1, a, b - 1, c + 1):
            ans.append('C')
            return True
    return False

dfs(0, A, B, C)

if len(ans) > 0:
    print('Yes')
    for x in reversed(ans):
        print(x)
else:
    print('No')
from collections import defaultdict
N,Q = map(int,input().split())
AB = []
for _ in range(N-1):
    AB.append([int(i) for i in input().split()])
PX = []
for _ in range(Q):
    PX.append([int(i) for i in input().split()])
class Tree:
    def __init__(self,n):
        self.tree = defaultdict(list)
        self.score = [0]*n
    def add_edge(self,n1,n2):
        self.tree[n1].append(n2)
    def calc_score(self,n,s):
        self.score[n-1]+=s
        if self.tree[n] == []:
            pass
        else:
            for n in self.tree[n]:
                self.calc_score(n,s)
tree = Tree(N)
for ab in AB:
    tree.add_edge(ab[0],ab[1])
for px in PX:
    tree.calc_score(px[0],px[1])
print(*tree.score)


### FIXED CODE ###

N,Q = map(int,input().split())
AB = [[] for _ in range(N-1)]
for n in range(N-1):
    AB[n] = list(map(int,input().split()))
PX = [[] for _ in range(Q)]
for q in range(Q):
    PX[q] = list(map(int,input().split()))
graph = [[] for _ in range(N+1)]
for ab in AB:
    graph[ab[0]].append(ab[1])
    graph[ab[1]].append(ab[0])
val = [0] * (N+1)
for px in PX:
    val[px[0]] += px[1]
parent = [0] * (N+1)
from collections import deque
Q  = deque([1])
while Q:
    q = Q.popleft()
    for c in graph[q]:
        if c == parent[q]:
            continue
        parent[c] = q
        Q.append(c)
        val[c] += val[q]
print(*val[1:])
T = input()
PD = list(T)

for i in range(len(PD)):
  if PD[i] == '?':
    if i == len(PD):
      PD[i] = 'D'
    elif PD[i-2] == 'P' and PD[i-1] == 'D':
      PD[i] = 'P'
    else:
      PD[i] = 'D'
      
print(''.join(PD))

### FIXED CODE ###

T = input()
print(T.replace('?','D'))
n=int(input())
A=sorted(list(map(int,input().split())))
print(sum(A[n//2:])-sum(A[:n//2]))

i=0
while len(A)>3:  
  a=min(A)
  b=max(A)
  if i%2==0:
    print("{} {}".format(b,a))
    A.append(b-a)
  else:
    print("{} {}".format(a,b))
    A.append(a-b)
  i+=1
  A.remove(a)
  A.remove(b)
  
  
A.sort()
print("{} {}".format(A[0],A[1]))
print("{} {}".format(A[2],A[0]-A[1]))
    
    

### FIXED CODE ###

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

if n==2:
    print(abs(A[0]-A[1]))
    print(*A)
    exit()
A.sort()
menos=[] ; plus=[]
for i in range(len(A)):
    if A[i]<0:
        menos.append(A[i])
    else:
        plus.append(A[i])
if menos==[]:
    print(sum(plus)-plus[0]*2)
    res=plus[0]
    for i in range(n-2):
        print(res, A[i+1])
        res=res-A[i+1]
    print(A[n-1], res);exit()
        
elif plus==[]:
    print(-sum(menos)+ menos[-1]*2)
    res=menos[-1]
    for i in range(n-1):
        print(res,menos[i])
        res=res-menos[i]
    exit()
    

print(sum(plus)-sum(menos))
m=len(menos); p=len(plus)
if p==1:
    res=plus[-1]
    for i in range(n-1):
        print(res,menos[i])
        res=res-menos[i]
    exit()
if m==1:
    res=menos[0]
    for i in range(n-2):
        print(res, plus[i])
        res=res-plus[i]
    print(plus[-1], res);exit()

Q= plus[1:]+ [menos[0]]
W= menos[1:]+[plus[0]] ;#print(Q,W)

res=W[-1]
for i in range(len(W)-1):
    print(res,W[i])
    res=res-W[i]
rec=Q[-1]
for i in range(len(Q)-1):
    print(rec, Q[i])
    rec=rec-Q[i]
print(res,rec)
h,w = map(int, input().split())
#get hight and weidth 
glid = [0] * ( h+ 2)

h_index = [-1, 0, 0,  1]
w_index = [ 0, -1, 1, 0]



glid[0]=["."] * ( w + 2 )
glid[h + 1 ] = ["."] * ( w + 2 )

for i in range(h):
	temp1 = ["."]
	temp2 = list(input())
	temp1.extend(temp2)
	temp1.append(".")
	glid[ i + 1 ] = temp1

# get glids 

cnt = 0

for j in range(h):
	for k in range(w):
		if glid[ j + 1 ][ k + 1 ] == ".":
			continue
		else:
			flg = False
			for n in range(4):
				if glid[ j  + 1 + h_index[ n ] ][ k + 1 + w_index[ n ]] == "#" :
					flg = True
					break
				cnt += 1
			if flg == False :
				break
	if flg == False :
		break

if cnt<0:
	print("Yes")
else:
	print("No")


### FIXED CODE ###

h,w = map(int, input().split())
#get hight and weidth 
glid = [0] * ( h+ 2)

h_index = [-1, 0, 0,  1]
w_index = [ 0, -1, 1, 0]



glid[0]=["."] * ( w + 2 )
glid[h + 1 ] = ["."] * ( w + 2 )

for i in range(h):
	temp1 = ["."]
	temp2 = list(input())
	temp1.extend(temp2)
	temp1.append(".")
	glid[ i + 1 ] = temp1

# get glids 

cnt = 0

for j in range(h):
	for k in range(w):
		if glid[ j + 1 ][ k + 1 ] == "#" and glid[ j ][ k + 1 ] == "." and glid[ j + 2 ][ k + 1 ] == "." and glid[ j + 1][ k  ] == "." and glid[ j + 1][ k +2 ] == "." :
			cnt += 1

if cnt > 0 :
	print("No")
else:
	print("Yes")
40
ferelibenterhominesidquodvoluntcredunt

### FIXED CODE ###

n = int(input())
s = str(input())

if len(s) <= n:
    print(s)
else:
    print(s[:n] + "...")
a,b,c,d=list(map(int ,input().split()))
max_v=max(a,c)
min_v=min(b,d)
if(max_v-min_v>0 or min_v-max_v<0):
  print("No")
elif(max_v-min_v>0):
  print("Yes")


### FIXED CODE ###

n=int(input())
s=""
for i in range(0,n):
    s+="ACL"

print(s)
mod = 10**9+7
N = int(input())
iwpos = []
iwneg = []
for i in range(N):
    a, b = map(int,input().split())
    if a*b > 0:
        iwpos.append((a,b))
    else:
        iwneg.append((a,b))

cnt = 0
for ap, bp in iwpos:
    for an, bn in iwneg:
        if ap * an + bn * bp == 0:
            cnt += 1
            break
#print(cnt)
ans = (2**(N-2*cnt)*3**cnt-1)%mod            
print(ans)

### FIXED CODE ###

from math import gcd
from collections import defaultdict

N = int(input())
AB = [tuple(map(int, input().split())) for _ in range(N)]
MOD = 10**9 + 7

d = defaultdict(int)#defaultdictで数えあげ
cnt_00 = 0
cnt_0b = 0
cnt_a0 = 0
for a,b in AB:
    if a == b == 0:
        cnt_00 += 1
    elif a == 0:
        cnt_a0 += 1
    elif b == 0:
        cnt_0b += 1
    else:
        num_gcd = gcd(a,b)
        grad = 1 if a * b > 0 else -1
        a //= num_gcd
        b //= num_gcd
        d[(grad, abs(a), abs(b))] += 1

ans = 1
for k in d.keys():
    if d[k] == 0:
        continue
    
    grad, a, b = k[0], k[1], k[2]
    if (-grad, b, a) in d:
        
        # 傾き a/bのものを一つ以上選ぶ場合（-b/aは選ばない） + -b/aから一つ以上選ぶ場合（a/bは選ばない） + どちらからも選ばない場合
        ans *= (pow(2, d[(grad, a, b)], MOD)-1) + (pow(2, d[(-grad, b, a)], MOD)-1) + 1
        ans %= MOD
        d[(grad, a, b)] = 0
        d[(-grad, b, a)] = 0
    else:
        # a/bから0個以上選ぶ場合
        ans *= pow(2, d[(grad, a, b)], MOD)
        ans %= MOD
        d[(grad, a, b)] = 0

# a,bの一方のみ0の場合 + どちらからも選ばない場合
ans *= (pow(2, cnt_a0, MOD)-1) + (pow(2, cnt_0b, MOD)-1) + 1
ans %= MOD

# 0,0のみを１つだけ入れる場合
ans += cnt_00
# なにも選ばない場合を除く
ans -= 1

ans %= MOD

print(ans)
import heapq
N,M=map(int,input().split())
x={}
for i in range(M+1):
    x[i]=[]
for i in range(N):
    a,b=map(int,input().split())
    x[a].append(-b)
y=[]
an=0
for i in range(M+1):
    for n in x[i]:
        heapq.heappush(y,n)
    try:
        an-=heapq.heappop(y)
    except:
        pass
print(an)

### FIXED CODE ###

import heapq
N,M=map(int,input().split())
x={}
for i in range(M+1):
    x[i]=[]
for i in range(N):
    a,b=map(int,input().split())
    if a>M:
        continue
    x[a].append(-b)
y=[]
an=0
for i in range(M+1):
    for n in x[i]:
        heapq.heappush(y,n)
    try:
        an-=heapq.heappop(y)
    except:
        pass
print(an)
s=input()

ct=0
if(s[0]=="o" or s[1]=="o"or s[2]=="o"):
  f=800
elif(s[0]=="o" and  s[1]=="o"and s[2]=="o"):
  f=1000
elif(elif(s[0]=="o" and  s[1]=="o"):
  f=900
else:
    f=700
print(f)  

### FIXED CODE ###

s=input()
ct=0
for i in range(0,len(s)):
    
    if(s[i]=="o"): 
        ct=ct+1
if(ct>0):
  f=700+100*ct
else:
  f=700
print(f)
S = input()
def trans(s,i):
    if s == "":
        return "YES"
    if i == 0:
        t = s[:5]
        if t == "dream":
            return trans(s[5:],1)
        elif t == "erase":
            return trans(s[5:],2)
        else:
            return "NO"
    elif i == 1:
        if s[:5] == "dream":
            return trans(s[5:],1)
        elif s[:2] == "er":
            return trans(s[2:],3)
        else:
            return "NO"
    elif i == 2:
        if s[:5] == "dream":
            return trans(s[5:],1)
        elif s[:5] == "erase":
            return trans(s[5:],2)
        elif s[:1] == "r":
            return trans(s[1:],0)
        else:
            return "NO"
    elif i == 3:
        if s[:5] == "dream":
            return trans(s[5:],1)
        elif s[:3] == "ase":
            return trans(s[3:],2)
        elif s[:5] == "erase":
            return trans(s[5:],2)
        else:
            return "NO"
    
print(trans(S,0))

### FIXED CODE ###

s = input()
i = 0
while True:
    if s == "":
        print("YES")
        exit(0)
    if i == 0:
        if s[:5] == "dream":
            s = s[5:]
            i = 1
        elif s[:5] == "erase":
            s = s[5:]
            i = 2
        else:
            break
    elif i == 1:
        if s[:5] == "dream":
            s = s[5:]
            i = 1
        elif s[:2] == "er":
            s = s[2:]
            i = 3
        else:
            break
    elif i == 2:
        if s[:5] == "dream":
            s = s[5:]
            i = 1
        elif s[:5] == "erase":
            s = s[5:]
            i = 2
        elif s[:1] == "r":
            s = s[1:]
            i = 0
        else:
            break
    elif i == 3:
        if s[:5] == "dream":
            s = s[5:]
            i = 1
        elif s[:3] == "ase":
            s = s[3:]
            i = 2
        elif s[:5] == "erase":
            s = s[5:]
            i = 2
        else:
            break
print("NO")
import bisect
n, m = map(int, input().split())
a = list(map(int, input().split()))
a.sort()
for i in range(m):
    tmp_max = a.pop()
    bisect.insort(a, tmp_max // 2)
print(sum(a))

### FIXED CODE ###

s = input()
w = {'Sunny':'Cloudy', 'Cloudy':'Rainy', 'Rainy':'Sunny'}
print(w[s])
N, M = map(int, input().split())
shops = sorted([list(map(int, input().split())) for i in range(n)])
drink = 0
cost = 0

for i in range(N):
    cost += shops[i][0]*shops[i][1]
    drink += shops[i][1]
    if drink >= m:
        cost -= (drink -m) * shops[i][0]
        break
        
print(cost)


### FIXED CODE ###

N, M = map(int, input().split())
shops = sorted([list(map(int, input().split())) for i in range(N)])
drink = 0
cost = 0

for i in range(N):
    cost += shops[i][0]*shops[i][1]
    drink += shops[i][1]
    if drink >= M:
        cost -= (drink -M) * shops[i][0]
        break
        
print(cost)
import itertools

n = int(input())

l = [0]*n
for i in range(n):
    s = input()
    if s[0] == "M":
        l[0] += 1
    if s[0] == "A":
        l[1] += 1
    if s[0] == "R":
        l[2] += 1
    if s[0] == "C":
        l[3] += 1
    if s[0] == "H":
        l[4] += 1 

ans = 0
for a in list(itertools.combinations(l,3)):
    c = 1
    for i in a:
        c *=i
    ans += c

print(ans)    

### FIXED CODE ###

import itertools

n = int(input())

l = [0]*5
for i in range(n):
    s = input()
    if s[0] == "M":
        l[0] += 1
    if s[0] == "A":
        l[1] += 1
    if s[0] == "R":
        l[2] += 1
    if s[0] == "C":
        l[3] += 1
    if s[0] == "H":
        l[4] += 1 

ans = 0
for a,b,c in itertools.combinations(l,3):
    ans += a*b*c

print(ans)
from itertools import combinations as f
l,r=map(int,input().split())
m=l*r%2019
for i,j in f(range(l,r+1),2):m=min(m,i*j%2019)
print(m)   

### FIXED CODE ###

from itertools import combinations as f
l,r=map(int,input().split())
s=set(map(lambda x:x%2019,range(l,r+1)[:2019]))
print(min([i*j%2019 for i,j in f(s,2)]))
n=int(input())
import copy
l=[list(map(int,input().split())) for i in range(n)]
q=copy.copy(l)
dp=[0]*(n+1)
dp[0]=0
dp[1]=max(l[0])
for i in range(1,n-1):
  if l[i+1].index(max(l[i+1]))==l[i].index(max(l[i]):
    qq=q[i+1].sort()                                      
    dp[i+1]=max(dp[i-1]+max(l[i+1]),dp[i]+qq[1])
print(n)
                

### FIXED CODE ###

n=int(input())
abc=[list(map(int,input().split())) for i in range(n)]
dp=[[0,0,0] for _ in range(n+1)]
for i in range(n):
  for a in range(3):
    for b in range(3):
      if a!=b:
        dp[i+1][a]=max(dp[i][b]+abc[i][a],dp[i+1][a])
print(max(dp[n]))
a,b,c = map(int,input().split)

if a == b:
  print("Yes")
else:
  if c == a:
    print("Yes")
  else:
    if c == b:
      print("Yes")
    else:
      print("No")
  


### FIXED CODE ###

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

s = set([a,b,c])

if len(s) == 2:
  print("Yes")
else:
  print("No")
n = int(input())
s = input()
slimes = s.split("")
i = 0
while i < n - 1:
  s = slimes[i]
  while s == slimes[i + 1]:
    slimes.pop(i + 1)
    n -= 1
  i += 1
print(str(n))

### FIXED CODE ###

n = int(input())
s = input()

ans = 1
current = s[0]
for i in range(n):
  if current != s[i]:
    ans += 1 
    current = s[i]
print(str(ans))
n=input()
    pirnt("Yes" n[0]==n[2] else "No")

### FIXED CODE ###

n=input()
print("Yes" if n[0]==n[2] else "No")
N, X=map(int, input().split())
L=list(map(int, input().split()))

length=0
counter=0
while l<=X:
  length+=L[counter]
  counter+=1
  
print(counter)

### FIXED CODE ###

import numpy as np

temp=list(map(int, input().split()))

N=temp[0]
X=temp[1]

L=list(map(int, input().split()))

ind=1
while np.sum(L[:ind])<=X and ind<=N:
  ind+=1
  
print(ind)
h,w,k = map(int,input().split())

cake = []
for i in range(h):
    x = list(input())
    cake.append(x)

ans = [[0]*w for _ in range(h)]

raw_ind = []

c = 1
for i in range(h):
    if cake[i].count('#') == 1:
        for j in range(w):
            ans[i][j] += c
        c += 1
    elif '#' in cake[i]:
        for j in range(w):
            if cake[i][j] =='.':
                ans[i][j] = c
            else:
                ans[i][j] = c
                c += 1
    else:
        raw_ind.append(i)

for x in raw_ind:
    j = 0
    while (x+j) in raw_ind and x+j <= h-1:
        j += 1
    if x+j == h:
        break
    for l in range(j):
        ans[x+l] = ans[x+j]

raw_ind = sorted(raw_ind, reverse =True)

for x in raw_ind:
    j = 0
    while (x-j) in raw_ind and x+j >= 0:
        j +=1
    if x+j == -1:
        break
    for l in range(j):
        if x-j >= 0:
            ans[x+l] = ans[x-j]

print(ans) 

### FIXED CODE ###

h,w,k = map(int,input().split())

cake = []
for i in range(h):
    x = list(input())
    cake.append(x)

ans = [[0]*w for _ in range(h)]

c = 1
for i in range(h):
    if cake[i].count('#') == 1:
        for j in range(w):
            ans[i][j] += c
        c = min(c+1,k)
    elif '#' in cake[i]:
        ss = c
        s = cake[i].count('#')
        for j in range(w):
            if cake[i][j] =='.':
                ans[i][j] = c
            else:
                ans[i][j] = c
                c = min(c+1,ss+s-1)
        c = c+1

j = 0
while not '#' in cake[j]:
    j += 1

for l in range(j):
    ans[l] = ans[j]

for i in range(h):
    if min(ans[i]) == 0:
        ans[i] = ans[i-1]

for i in range(h):
    print(*(ans[i]))
N = int(input())
L = [int(input()) for i in range(N)]
L.sort()
k = 1
for i in range(len(L)):
  if (L[i] == L[i+1]):
    k -= 1
  else:
    k += 1
print(k)

### FIXED CODE ###

N = int(input())
A = [int(input()) for i in range(N)]
A.sort()
j = 1
J = 1
ans = 0
for j in range(1,len(A)):
  if (A[j-1] == A[j]):
    J += 1
  else:
    if (J%2 != 0):
      ans += 1
      J = 1
    else:
      J = 1
if (J%2 != 0):
  ans += 1
print(ans)