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

import math

def count_factor(factor, factors):
    count = 0
#    print("factor: " + str(factor))
#    print(factors)

    for f in factors:
        if f == factor:
            count += 1

    return count

def divide_to_prime_factors(num):
    factor = 1
    factors = []

    while factor <= math.sqrt(num):
        if num % factor == 0:
            factors.append(factor)
            if factor * factor != num:
                factors.append(int(num / factor))

        factor += 1

    return factors

n_and_x = input().split(" ")
city_num = int(n_and_x[0])
start = int(n_and_x[1])

city_places = [int(n) for n in input().split(" ")]

city_distances = []
for place in city_places:
    city_distances.append(abs(place - start))

dist_factors = []
for dist in city_distances:
    dist_factors.extend(divide_to_prime_factors(dist))
#print(dist_factors)

step = 1
for factor in dist_factors:
    if factor > step:
        fact_count = count_factor(factor, dist_factors)
#        print(fact_count)
        if fact_count == city_num:
            step = factor

#step = int(max(city_distances) / 2)

#can_travel = False
#while can_travel == False:
#    can_travel = True
#    for city in city_places:
#        if abs(city - start) % step != 0:
#           can_travel = False
#    if can_travel == False:
#        step -= 1

print(step)

### FIXED CODE ###

import math

def is_common(dists, factor):
    count = 0
#    print("factor: " + str(factor))
#    print(factors)
#    print(factor)
#    print(factors[1:]

    for dist in dists:
        if dist % factor != 0:
            return False
    
    return True

def divide_to_prime_factors(num):
    factor = 1
    factors = []

    while factor <= math.sqrt(num):
        if num % factor == 0:
            factors.append(factor)
            if factor * factor != num:
                factors.append(int(num / factor))

        factor += 1

    return factors

n_and_x = input().split(" ")
city_num = int(n_and_x[0])
start = int(n_and_x[1])

city_places = [int(n) for n in input().split(" ")]

city_distances = []
for place in city_places:
    city_distances.append(abs(place - start))

dist_factors = reversed(sorted(divide_to_prime_factors(city_distances[0])))

step = 1
for fact in dist_factors:
    if is_common(city_distances[1:], fact):
        step = fact
        break

#        print(fact_count)
#step = int(max(city_distances) / 2)

#can_travel = False
#while can_travel == False:
#    can_travel = True
#    for city in city_places:
#        if abs(city - start) % step != 0:
#           can_travel = False
#    if can_travel == False:
#        step -= 1

print(step)
### BUGGY CODE ###

N, Q = [int(x) for x in input().split()]
S = str(input())

ac_list = []
for (idx, (s1, s2)) in enumerate(zip(S[:-1], S[1:])):
  if s1 == 'A' and s2 == 'C':
    ac_list.append(idx+1)

for _ in range(Q):
  l, r = [int(x) for x in input().split()]
  print(len([x for x in ac_list if l<=x<r]))



### FIXED CODE ###

import bisect
N, Q = [int(x) for x in input().split()]
S = str(input())

ac_list = []
for (idx, (s1, s2)) in enumerate(zip(S[:-1], S[1:])):
  if s1 == 'A' and s2 == 'C':
    ac_list.append(idx+1)

for _ in range(Q):
  l, r = [int(x) for x in input().split()]
  index_l = bisect.bisect_left(ac_list, l)
  index_r = bisect.bisect_left(ac_list, r)
  print(index_r - index_l)
### BUGGY CODE ###

import sys
from io import StringIO
import unittest

def resolve():
    n = int(input())
    s = input()
    ans = 0

    # for i in range(n):
    #     for j in range(1, n - i, 1):
    #         for k in range(1, n - i - j, 1):
    #             if j != k and s[i] != s[i+j] and s[i+j] != s[i+j+k] and s[i] != s[i+j+k]:
    #                 ans += 1

    for i in range(n):
        for j in range(1, n - i, 1):
            if s[i] != s[i+j]:
                for x in ('R', 'G', 'B'):
                    if x not in (s[i], s[i+j]):
                        tmp = x
                ans += s[i+2*j+1:].count(tmp) + s[i+j+1:i+2*j].count(tmp)

    print(ans)


class TestClass(unittest.TestCase):
    def assertIO(self, input, output):
        stdout, stdin = sys.stdout, sys.stdin
        sys.stdout, sys.stdin = StringIO(), StringIO(input)
        resolve()
        sys.stdout.seek(0)
        out = sys.stdout.read()[:-1]
        sys.stdout, sys.stdin = stdout, stdin
        self.assertEqual(out, output)
    def test_入力例_1(self):
        input = """4
RRGB"""
        output = """1"""
        self.assertIO(input, output)
    def test_入力例_2(self):
        input = """39
RBRBGRBGGBBRRGBBRRRBGGBRBGBRBGBRBBBGBBB"""
        output = """1800"""
        self.assertIO(input, output)

if __name__ == "__main__":
    #unittest.main()
    resolve()

### FIXED CODE ###

import sys
from io import StringIO
import unittest

def resolve():
    n = int(input())
    s = input()
    ans = s.count('R') * s.count('G') * s.count('B')

    for i in range(n):
        for j in range(1, (n - 1)//2 + 1, 1):
            if i + 2 * j < n:
                if s[i] != s[i + j] and s[i] != s[i + 2 * j] and s[i + j] != s[i + 2 * j]:
                    ans -= 1

    print(ans)


class TestClass(unittest.TestCase):
    def assertIO(self, input, output):
        stdout, stdin = sys.stdout, sys.stdin
        sys.stdout, sys.stdin = StringIO(), StringIO(input)
        resolve()
        sys.stdout.seek(0)
        out = sys.stdout.read()[:-1]
        sys.stdout, sys.stdin = stdout, stdin
        self.assertEqual(out, output)
    def test_入力例_1(self):
        input = """4
RRGB"""
        output = """1"""
        self.assertIO(input, output)
    def test_入力例_2(self):
        input = """39
RBRBGRBGGBBRRGBBRRRBGGBRBGBRBGBRBBBGBBB"""
        output = """1800"""
        self.assertIO(input, output)

if __name__ == "__main__":
    #unittest.main()
    resolve()
### BUGGY CODE ###

n, m = map(int, input().split())
A = []
for i in range(m):
    A.append(int(input()))
    
dp = [0 for i in range(n + 1)]
dp[0] = 1

for i in range(n+1):
    if not i in A:
        if i >= 2:
            dp[i] += (dp[i-2] + dp[i-1]) % (10 ** 9 + 7)
        elif i == 1:
            dp[i] += dp[i-1] % (10 ** 9 + 7)
    else:
        A.remove(i)
        
print(dp[-1] % (10 ** 9 + 7))

### FIXED CODE ###

n, m = map(int, input().split())
mod = 10 ** 9 + 7
A = []
for i in range(m):
    A.append(int(input()))
    
dp = [None for i in range(n + 1)]
dp[0] = 1

for a in A:
    dp[a] = 0
    
for i in range(1,n+1):
    if dp[i] != 0:
        dp[i] = 0
        if i >= 2:
            dp[i] += (dp[i-2] + dp[i-1]) % mod
        elif i == 1:
            dp[i] += dp[i-1] % mod
            
print(dp[-1])
### BUGGY CODE ###

temp=input().split()
L=int(temp[0])
R=int(temp[1])

#print(min([(i*j)%2019 for i in range(L, R) for j in range(i+1, R+1)]))
temp=2019
for i in range(L, R):
  for j in range(i+1, R+1):
    if (i*j)%2019<temp:
      temp=(i*j)%2019
      
print(temp)

### FIXED CODE ###

temp=input().split()
L=int(temp[0])
R=int(temp[1])

if R-L>=2019:
  print(0)
else:
  print(min([(i*j)%2019 for i in range(L, R) for j in range(i+1, R+1)]))
### BUGGY CODE ###

S = list(input())
T = [1 for i in range(len(S))]


for i in range(10**(100)):
  U = [0 for k in range(len(S))]
  U[1]+=T[0]
  U[len(S)-2]+=T[len(S)-1]
  for j in range(1,len(S)-1):
    if S[j]=='R':
      U[j+1]+=T[j]
    else:
      U[j-1]+=T[j]
  T = U
  
for i in T:
  print(i, end=' ')

### FIXED CODE ###

S=input()
#偶数回
#左右からfor
N=len(S)
odd=0
even=0
ans=[0]*N
for i in range(N-1):
    if i%2==0 and S[i]=="R":
        even+=1
    if i%2!=0 and S[i]=="R":
        odd+=1

    if S[i]=="R" and S[i+1]=="L":
        if i%2==0:
            ans[i]+=even
            ans[i+1]+=odd
        else:
            ans[i]+=odd
            ans[i+1]+=even
        odd=0
        even=0
odd=0
even=0
for i in range(N-1,0,-1):
    if i%2==0 and S[i]=="L":
        even+=1
    if i%2!=0 and S[i]=="L":
        odd+=1
    if S[i]=="L" and S[i-1]=="R":
        if i%2==0:
            ans[i]+=even
            ans[i-1]+=odd
        else:
            ans[i]+=odd
            ans[i-1]+=even
        odd=0
        even=0
print(*ans)
### BUGGY CODE ###

import bisect

N = int(input())

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

b = [A[0] + 1]

ans = 0

for i, a in enumerate(A[1:], 2):
    ans += bisect.bisect_right(b, i - a) - bisect.bisect_left(b, i - a)
    bisect.insort_right(b, i + a)

print(ans)

### FIXED CODE ###

import bisect

N = int(input())

border = N * 2

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

b = [A[0] + 1]

C = [0] * (border + 1)

ans = 0

for i, a in enumerate(A, 1):
    if 0 <= i - a <= border:
        ans += C[i - a]
    if i + a <= border:
        C[i + a] += 1
    #br = bisect.bisect_right(b, i - a)
    #bl = bisect.bisect_left(b, i - a)
    #ans += br - bl
    #b.index(bl, i + a)

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

x = int(input())
nums = [i for i in range(2, 100004)]
while nums:
    primal = nums.pop(0)
    if primal >= x:
        print(primal)
        break
    nums = [num for num in nums if num % primal != 0]


### FIXED CODE ###

import sys

x = int(input())
nums = [i for i in range(1, 100004, 2)]
del nums[0]
if x == 2:
    print(2)
    sys.exit()
while nums:
    primal = nums.pop(0)
    if primal >= x:
        print(primal)
        break
    nums = [num for num in nums if num % primal != 0]
### BUGGY CODE ###

r,c,k = map(int,input().split())
dp = [[[0 for _ in range(4)] for _ in range(c+1)] for _ in range(r+1)]
g = [[0]*(c+1) for _ in range(r+1)]
for _ in range(k):
    a,b,v = map(int,input().split())
    g[a][b] = v

for i in range(r+1):
    for j in range(c+1):
        for m in range(4):
            tmp  =dp[i][j][m]
            if i+1<=r:
                dp[i+1][j][0] = max(tmp,dp[i+1][j][0])
                dp[i+1][j][1] = max(dp[i+1][j][1],tmp + g[i+1][j])
            if j+1<=c:
                dp[i][j+1][m] = max(dp[i][j+1][m],tmp)
                if m<3:
                    dp[i][j+1][m+1] = max(dp[i][j+1][m+1],tmp + g[i][j+1]) 
print(max(dp[-1][-1]))
 

### FIXED CODE ###

import sys

R, C, K = map(int, input().split())
item = [[0] * (C + 1) for _ in range(R + 1)]  # dp配列と合わせるために, 0行目, 0列目を追加している.
for s in sys.stdin.readlines():
    r, c, v = map(int, s.split())
    item[r][c] = v

dp = [[[0] * (C + 1) for _ in range(R + 1)] for _ in range(4)]
for i in range(R + 1):
    for j in range(C + 1):
        for k in range(4):
            here = dp[k][i][j]
            if i + 1 <= R:
                dp[0][i + 1][j] = max(dp[0][i + 1][j], here)
                dp[1][i + 1][j] = max(dp[1][i + 1][j], here + item[i + 1][j])
            if j + 1 <= C:
                dp[k][i][j + 1] = max(dp[k][i][j + 1], here)
                if k < 3:
                    dp[k + 1][i][j + 1] = max(dp[k + 1][i][j + 1], here + item[i][j + 1])
ans = 0
for k in range(4):
    ans = max(ans, dp[k][-1][-1])
print(ans)
### BUGGY CODE ###

n = int(input())
a = list(map(int, input().split()))
a.append(0)
for i in range(n):
    x = 0
    s = 0
    for j in range(n+1):
        if i != j:
            s += abs(x - a[j])
            x = a[j]
    print(s)


### FIXED CODE ###

n = int(input())
l = list(map(int, input().split()))
a = [0] + l + [0]
s = 0
x = 0
for i in range(n + 2):
    s += abs(x - a[i])
    x = a[i]

for i in range(1, n + 1):
    t = s + abs(a[i + 1] - a[i - 1])
    t = t - abs(a[i] - a[i - 1])
    t = t - abs(a[i + 1] - a[i])
    print(t)
### BUGGY CODE ###

n = int(input())
print(0,flush=True)

prev = input()
if prev=='Vacant': exit()

now=[]

def isok(ans, should_change):
    print(ans,flush=True)
    now = input()

    if now == 'Vacant': exit()

    if (now!=prev and should_change)or(now==prev and not should_change):
        return False
    else:
        return True

ok = n
ng = 1

while ok - ng > 1:
    m = (ok+ng)//2
    should_change = (m-ng)%2!=0
    if isok(m, should_change):
        prev=now
        ok = m
    else:
        prev=now
        ng = m


### FIXED CODE ###

n = int(input())
print(0,flush=True)

prev = input()
if prev=='Vacant': exit()
zero = prev
now=[]

def isok(ans, odd_diff):
    print(ans,flush=True)
    now = input()

    if now == 'Vacant': exit()

    if (now==zero and odd_diff)or(now!=zero and not odd_diff):
        return True
    else:
        return False

ok = n-1 #ok以前にVacantが存在
ng = 0 #ng以前にVacantは存在しない

while ok - ng > 1:
    m = (ok+ng)//2
    odd_diff = (m%2==1)
    if isok(m, odd_diff):
        ok = m
    else:
        ng = m

print(ok,flush=True)
exit()
### BUGGY CODE ###

m = int(input())
n = list(map(int,input().split()))
ans = 0
for i in range(len(n)):
    ncopy = list(n)
    child = ncopy[i]
    ncopy.remove(ncopy[i])
    while(True):
        if len(ncopy) == 0:
            ans += 1    
        start = list(ncopy)
        for k in ncopy:
            if k <= child*2:
                ncopy.remove(k)
                child += k
        end = list(ncopy)
        if start == end:
            break
print(ans)
        

### FIXED CODE ###

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

n.sort()
SUM = 0
count = 0
for i in range(len(n)-1):
    SUM += n[i]
    if n[i+1] > SUM*2:
        count = i+1
print(len(n)-count)
### BUGGY CODE ###

import sys
input = sys.stdin.readline

'''

'''

def is_not_div(n, arr, rightp, num):
    if rightp == -1:
        return True
    else:
        for i in range(0, rightp+1):
            if num % arr[i] == 0:
                return False
        return True



def solve(n, arr):
    count = 0
    for i, num in enumerate(arr):
        if i > 0 and arr[i-1] == num:
            continue
        if i < len(arr) - 1 and arr[i+1] == num:
            continue

        if is_not_div(n, arr, i-1, num):
            count += 1
    return count



n = int(input())
arr = sorted(map(int, input().split()))
print(solve(n, arr))




### FIXED CODE ###

import sys
input = sys.stdin.readline

'''

'''

n = int(input())
a = sorted(map(int, input().split()))
largest = a[-1]
#largest = arr[-1]
div = [1] * (largest+1)
count = 0
arr = []
# remove duplicates
for i, v in enumerate(a):
    if i < (n-1) and a[i+1] == v:
        div[v] = 0
    else:
        arr.append(v)

arr.sort()

for num in arr:
    if div[num]:
        count += 1

    for d in range(num, largest+1, num):
        div[d] = 0

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

import sys

import numpy as np

readInt = lambda: int(sys.stdin.readline())
readIntN = lambda: [int(v) for v in sys.stdin.readline().split(" ")]

total = 0
ret = 1
n = readInt()
aa = []
for i in range(n):
    v = readInt()
    aa.append(v)
    total += v
    ret *= 3

memo = np.full(((n+1), (n * max(aa) + 1), 2), -1, dtype=np.int64)
def dfs12(i, c):
    if 0 <= memo[i, c, 0]:
        return memo[i, c]

    if i == n:
        memo[i, c, 0] = 3 if total <= (2 * c) else 0
        memo[i, c, 1] = 3 if total == (2 * c) else 0
        return memo[i, c]

    v0 = dfs12(i + 1, c)
    v1 = dfs12(i + 1, c + aa[i])

    memo[i, c, 0] = (2 * v0[0] + v1[0]) % 998244353
    memo[i, c, 1] = (v0[1] + v1[1]) % 998244353
    return memo[i, c]

a, b = dfs12(0, 0)
ret = (ret - a + b) % 998244353
print(ret)

### FIXED CODE ###

import sys

readInt = lambda: int(sys.stdin.readline())
readIntN = lambda: [int(v) for v in sys.stdin.readline().split(" ")]

total = 0
ret = 1
n = readInt()
aa = []
for i in range(n):
    v = readInt()
    aa.append(v)
    total += v
    ret *= 3


L = (n * max(aa) + 1)
memo = [-1] * ((n+1) * L * 2)
def dfs(i, c):
    key = (i * L * 2) + 2 * c
    if 0 <= memo[key]:
        return memo[key: key+2]

    if i == n:
        memo[key + 0] = 3 if total <= (2 * c) else 0
        memo[key + 1] = 3 if total == (2 * c) else 0
        return memo[key: key + 2]

    v0 = dfs(i + 1, c)
    v1 = dfs(i + 1, c + aa[i])

    memo[key + 0] = (2 * v0[0] + v1[0]) % 998244353
    memo[key + 1] = (v0[1] + v1[1]) % 998244353
    return memo[key: key + 2]

a, b = dfs(0, 0)
ret = (ret - a + b) % 998244353
print(ret)
### BUGGY CODE ###

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

def cf(x1,x2):
    cf=[]
    for i in range(2,min(x1,x2)+1):
        if x1 % i == 0 and x2 % i == 0:
            cf.append(i)
    return cf

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

def coprime(a, b):
    return gcd(a, b) == 1

l = cf(A, B)
if len(l) == 0:
    print(1)
else:
    c = 1
    for i in range(len(l)):
        for j in range(i):
            if not coprime(l[i], l[j]):
                break
        else:
            c += 1
    print(c)

### FIXED CODE ###

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

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

def coprime(a, b):
    return gcd(a, b) == 1

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)
    divisors.sort()
    return divisors

G = gcd(A, B)
l = make_divisors(G)
l.remove(1)
if len(l) == 0:
    print(1)
else:
    c = 1
    for i in range(len(l)):
        for j in range(i):
            if not coprime(l[i], l[j]):
                break
        else:
            c += 1
    print(c)
### BUGGY CODE ###

a,b,c,k = map(int,input().split())
for i in range(k):
    x = b+c
    y = a+c
    z = a+b
    a,b,c = x,y,z
if a-b > 10*18:
    print('Unfair')
else:
    print(a-b)

### FIXED CODE ###

a,b,c,k = map(int,input().split())
if k %2 == 1:
    print(b-a)
else:
    print(a-b)
### BUGGY CODE ###

n, k = map(int, input().split())
r, s, p = map(int, input().split())
t = input()
c = {"r": p, "s": r, "p": s}

ans = 0
for i in range(k):
    tmp = str()
    for j, v in enumerate(t):
        if j % k == i:
            tmp += v
    flg = True
    for l in range(len(tmp)-1):
        if flg:
            ans += c[tmp[l]]
        if tmp[l] == tmp[l+1]:
            flg = not flg
            continue
        if tmp[l] != tmp[l+1]:
            flg = True
    ans += c[tmp[-1]] if flg else 0
print(ans)


### FIXED CODE ###

n, k = map(int, input().split())
r, s, p = map(int, input().split())
t = input()

d = {"r": p, "s": r, "p": s}  # key: value = 筐体が出す手: 勝つともらえる点数
ans = 0
wins = [False] * k  # 剰余の周期ごとに、前回の勝ち負けを管理。勝ってたらTrueにして次回は負けないといけない。

for i in range(n):
    # kの剰余を使って周期ごとに管理。例えば剰余１の周期だけ見ると、出す手がずっと同じだと○×○×となる。
    # 出す手が前と異なるときは気にせず点数を追加する。
    if not wins[i % k] or t[i] != t[i-k]:
        ans += d[t[i]]
        wins[i % k] = True
    else:
        wins[i % k] = False

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

N,W = map(int,input().split())
wv = [list(map(int,input().split())) for _ in range(N)]
dp = [[0]*(W+1) for _ in range(N+1)]
 
for i in range(N):
  for j in range(W+1):
    if j - wv[i][0] >= 0:
      dp[i+1][j] = max(dp[i+1][j], dp[i][j-wv[i][0]] + wv[i][1])
    dp[i+1][j] = max(dp[i+1][j], dp[i][j])
 
ans = 0
 
print(dp[N][W])

### FIXED CODE ###

N,W = map(int,input().split())
wv = [list(map(int,input().split())) for _ in range(N)]
dp = [[0]*(W+1) for _ in range(N+1)]
 
for i in range(N):
  for j in range(W+1):
    if j - wv[i][0] >= 0:
      dp[i+1][j] = max(dp[i+1][j], dp[i][j-wv[i][0]] + wv[i][1])
    dp[i+1][j] = max(dp[i+1][j], dp[i][j])
 
ans = 0

print(dp[N][W])
### BUGGY CODE ###

def Stair(x):
  y=1
  for z in range(1,x+1):
    y*=z
  return y
N=int(input())
L=[]

for i in range(N):
  L.append(sorted(str(input())))

K=[]
C=[]

for j in range(N):
  if L[j] not in K:
    K.append(L[j])
    C.append(1)
  else:
    C[K.index(L[j])]+=1

A=0
for k in range(len(K)):
  if C[k]>1:
    if C[k]==2:
      A+=1
    else:
      A+=Stair(C[k])/(2*Stair(C[k]-2))

print(int(A))

### FIXED CODE ###

n = int(input())
s = [''.join(sorted(input())) for _ in range(n)]
d = {}
ans = 0
for string in s:
    if string in d:
        ans += d[string]
        d[string]+=1
    else:
        d[string]=1
print(ans)
### BUGGY CODE ###

def main():
    N = int(input())
    As = list(map(int, input().split()))
    c = 0
    for i in range(N):
        l = bin(0)
        r = 0
        for ii in range(i, N):
            l = bin(int(l, 2) ^ As[ii])
            r += As[ii]
            if (l == bin(r)): c += 1
    print(c)

if __name__ == '__main__':
    main()

### FIXED CODE ###

def main():
    N = int(input())
    A = list(map(int, input().split()))
    x = 0
    s = 0
    r = 0
    res = 0
    for l in range(N):
        while N > r and x ^ A[r] == s + A[r]:
            x ^= A[r]
            s += A[r]
            r += 1

        x ^= A[l]
        s -= A[l]
        res += r - l

    print(res)
if __name__ == '__main__':
    main()
### BUGGY CODE ###

from collections import Counter

N, *A = map(int, open(0).read().split())

ctr = Counter(A)
memo = set()
ans = 0

for a in sorted(A):
    if ctr[a] == 1:
        if a == 1:
            ans = 1
            break

        for i in range(1, int(a ** 0.5) + 1):
            if a % i == 0:
                if (i in memo) or (a // i in memo):
                    break
        else:
            ans += 1

    memo.add(a)
        
print(ans)


### FIXED CODE ###

from collections import Counter

N, *A = map(int, open(0).read().split())

m = max(A) + 1
ok = [True] * m
ctr = Counter(A)
ans = 0
for a in sorted(A):
    if ok[a] and ctr[a] == 1:
        ans += 1
        
    for j in range(2 * a, m, a):
        ok[j] = False
            
print(ans)
### BUGGY CODE ###

s = input()

tag = 0
i = 1
num = [0]*1000000

while tag == 0:
    if int(s)%2 == 0:
        s = int(s)/2
    else:
        s = 3*int(s) + 1
    i += 1
    for j in range(i):
        if s == num[j]:
            tag = 1
            break
        else:
            continue

print (i)



### FIXED CODE ###

s = input()

tag = 0
i = 1
num = []

while tag == 0:
    if i > 1000000:
        break
    num.append(int(s))
    if int(s)%2 == 0:
        s = int(s)/2
    else:
        s = 3*int(s) + 1
    i += 1
    for j in range(int(i)-1):
        if int(s) == int(num[j]):
            tag = 1
            print (i)
            break
        else:
            continue
### BUGGY CODE ###

input()
S = [int(i) for i in input()]
cnt = 0
for i in range(0, 1000):
  c = (i//100, (i//10)%10, i%10)
  f = 0
  for s in S:
    if s == c[f]:
      f += 1 
      if f==3:break 
  if f==3:cnt += 1
print(cnt)

### FIXED CODE ###

input()
S = [int(i) for i in input()]
cnt = 0
for i in range(0, 1000):
  c = (i//100, (i//10)%10, i%10)
  f = 0
  for s in S:
    if s == c[f]:
      f += 1 
      if f==3:break 
  if f==3:cnt += 1
print(cnt)