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

import sys
sys.setrecursionlimit(10**7)
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x) - 1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def II(): return int(sys.stdin.readline())
def SI(): return sys.stdin.readline().strip()
INF = 10 ** 18
MOD = 10 ** 9 + 7

debug = True
debug = False

def dprint(*objects):
    if debug == True:
        print(*objects)

def main():
    s = SI()
    t = SI()

    d = {}
    for i, c in enumerate(s):
        if c not in d.keys():
            d[c] = [i]
        else:
            d[c].append(i)

    import collections
    didx = collections.defaultdict(int)

    for c in t:
        if c not in d.keys():
            print(-1)
            return

    dprint(d)
    dprint(didx)

    import bisect

    i_loop = 0
    currentidx = -1
    for c in t:
        # 次の文字を読む
        poslist = d[c]

        if len(poslist) <= didx[c]:
            # 文字を取り切っている場合は次のループに
            i_loop += 1
            didx = collections.defaultdict(int)
            currentidx = poslist[0]
            didx[c] += 1
        else:
            # とり切っていない場合
            poslist_afteridx = poslist[didx[c]:]
            posidx = bisect.bisect_right(poslist_afteridx, currentidx)

            if posidx >= len(poslist_afteridx):
                # とれないなら次のループでとったことにする
                i_loop += 1
                didx = collections.defaultdict(int)
                currentidx = poslist[0]
                didx[c] += 1
            else:
                # 同じループでとれるなら取って、現在位置を更新
                pos = poslist_afteridx[posidx]
                currentidx = pos
                didx[c] = posidx + 1

        dprint(c, i_loop, pos, currentidx)
        dprint(didx)

    print(len(s)*i_loop + currentidx + 1)

main()

### FIXED CODE ###

import sys
def SI(): return sys.stdin.readline().strip()

def main():
    s = SI()
    t = SI()

    import collections
    d = collections.defaultdict(list)
    for i, c in enumerate(s):
        d[c].append(i)

    keys = d.keys()
    for c in set(t):
        if c not in keys:
            print(-1)
            return

    import bisect

    i_loop = 0
    currentidx = -1
    for c in t:
        # 次の文字を読む
        poslist = d[c]

        # とり切っていない場合
        posidx = bisect.bisect_right(poslist, currentidx)

        if posidx >= len(poslist):
            # とれないなら次のループでとったことにする
            i_loop += 1
            currentidx = poslist[0]
        else:
            # 同じループでとれるなら取って、現在位置を更新
            pos = poslist[posidx]
            currentidx = pos

    print(len(s)*i_loop + currentidx + 1)

main()
### BUGGY CODE ###

n = int(input())
p = list(map(int,input().split()))
count = 0
for i in range(n):
    if i == 0:
        count += 1
    else:
        if min(p[:i]) >= p[i]:
            count += 1
print(count)

### FIXED CODE ###

n = int(input())
p = list(map(int,input().split()))
m = 10**10
count = 0
for i in range(n):
    if p[i] <= m:
        count += 1
    m = min(m,p[i])
print(count)
### BUGGY CODE ###

Z = [0,1,2,3,4,5,6,7,8,9,10]
C = [0,1,2,3,4,5,6,7,8,9]
X = [0,1,2,3,4,5,6,7,8,9]

def solve_dp(s):
    n = len(s)
    s = [int(c) for c in s]
    inf = 10**9

    dp = [[inf] * 2 for _ in range(n)]

    d0 = s[0]
    dp[0][0] = Z[d0]
    dp[0][1] = Z[d0+1]

    for i in range(1, n):
        for j in range(2):
            d = s[i] + j
            for k in range(10):
                if d + C[k] >= 10:
                    dp[i][j] = min(dp[i][j], dp[i-1][1] + X[k] + Z[d + C[k] - 10])
                else:
                    dp[i][j] = min(dp[i][j], dp[i-1][0] + X[k] + Z[d + C[k]])

    return dp[n-1][0]

if __name__ == '__main__':
    s = input()
    s = "0"+ s
    print(solve_dp(s))

### FIXED CODE ###

Z = [0,1,2,3,4,5,6,7,8,9,10]
C = [0,1,2,3,4,5,6,7,8,9]
X = [0,1,2,3,4,5,6,7,8,9]

def solve_dp(s):
    n = len(s)
    s = [int(c) for c in s]
    inf = 10**9

    dp = [[inf] * 2 for _ in range(n)]

    d0 = s[0]
    dp[0][0] = Z[d0]
    dp[0][1] = Z[d0+1]

    for i in range(1, n):
        for j in range(2):
            d = s[i] + j
            for k in range(10):
                if d + C[k] >= 10:
                    dp[i][j] = min(dp[i][j], dp[i-1][1] + X[k] + Z[d + C[k] - 10])
                else:
                    dp[i][j] = min(dp[i][j], dp[i-1][0] + X[k] + Z[d + C[k]])

    return dp[n-1][0]

if __name__ == '__main__':
    s = input()
    s = "0"+ s
    print(solve_dp(s))
### BUGGY CODE ###

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

for _ in range(N):
  a, b = map(int, input().split())
  A += [a]*b
A.sort()
print(A[K-1])

### FIXED CODE ###

N, K = map(int, input().split())
AB = [list(map(int, input().split())) for _ in range(N)]
AB = sorted(AB, key=lambda x:x[0])

total = 0
for a, b in AB:
  total += b
  if total >= K:
    print(a)
    exit()
### BUGGY CODE ###

import math

INIT_VAL = pow(2, 31)-1

class SegmentTree():
    def __init__(self, n):
        self.n = n
        self.height = math.ceil(math.log2(n))
        self.nodes = [INIT_VAL for i in range(pow(2, self.height+1)-1)]
        self.leaf_start = pow(2, self.height)-1

    def update(self, i, x):
        pntr = self.leaf_start + i
        self.nodes[pntr] = x
        while True:
            pntr = (pntr-1)//2
            l, r = pntr*2 + 1, pntr*2 + 2
            self.nodes[pntr] = min(self.nodes[l], self.nodes[r])
            if pntr == 0: break

    def __query(self, s, t, k, l, r):
        if t - s <= 0: return INIT_VAL
        if r <= s or t <= l: return INIT_VAL
        if l == s and t == r: return self.nodes[k]
        else:
            m = (l+r)//2
            vl = self.__query(s, m, k*2+1, l, m)
            vr = self.__query(m, t, k*2+2, m, r)
            return min(vl, vr)

    def find(self, s, t):
        return self.__query(s, t+1, 0, 0, pow(2, self.height))

n, q = list(map(int, input().split(' ')))
st = SegmentTree(n)
for i in range(q):
    com, x, y = list(map(int, input().split(' ')))
    if com == 0:
        st.update(x, y)
    elif com == 1:
        print(st.find(x, y))


### FIXED CODE ###

import math

INIT_VAL = pow(2, 31)-1

class SegmentTree():
    def __init__(self, n):
        self.n = n
        self.height = math.ceil(math.log2(n))
        self.nodes = [INIT_VAL for i in range(pow(2, self.height+1)-1)]
        self.leaf_start = pow(2, self.height)-1

    def update(self, i, x):
        pntr = self.leaf_start + i
        self.nodes[pntr] = x
        while True:
            pntr = (pntr-1)//2
            if pntr == -1: break
            l, r = pntr*2 + 1, pntr*2 + 2
            self.nodes[pntr] = min(self.nodes[l], self.nodes[r])

    def __query(self, s, t, k, l, r):
        if t - s <= 0: return INIT_VAL
        if r <= s or t <= l: return INIT_VAL
        if l == s and t == r: return self.nodes[k]
        else:
            m = (l+r)//2
            if t <= m:
                return self.__query(s, t, k*2+1, l, m)
            elif m <= s:
                return self.__query(s, t, k*2+2, m, r)
            else:
                vl = self.__query(s, m, k*2+1, l, m)
                vr = self.__query(m, t, k*2+2, m, r)
                return min(vl, vr)

    def find(self, s, t):
        return self.__query(s, t+1, 0, 0, pow(2, self.height))

n, q = list(map(int, input().split(' ')))
st = SegmentTree(n)
for i in range(q):
    com, x, y = list(map(int, input().split(' ')))
    if com == 0:
        st.update(x, y)
    elif com == 1:
        print(st.find(x, y))
### BUGGY CODE ###

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

for element in a:
    if element in list: pass
    elif a.count(element)>=2:
        list.append(element)
        if a.count(element)>=4:sqrt.append(element)

list.sort()
sqrt.sort()
n=len(list)
m=len(sqrt)

if n==0: ans=0
elif n==1:
    if m==0: ans=0
    else: ans=max(sqrt)**2
elif n>=2:
    if m==0:
        x=max(list); list.remove(x)
        y=max(list)
        ans=x*y
    else:
        x=max(list); list.remove(x)
        y=max(list)
        ans=x*y
        if ans<max(sqrt)**2: ans=max(sqrt)**2

print(ans)

### FIXED CODE ###

n=int(input())
a=list(map(int,input().split()))
a.sort(reverse=True)

ans=[]
tmp=0
count=0
for el in a:
    if len(ans)==2: break
    if el != tmp: tmp=el; count=0
    else:
        if count%2==0: ans.append(el); tmp=el;
        count+=1

try: ans=ans[0]*ans[1]
except: ans=0
print(ans)
### BUGGY CODE ###

n, k = map(int, input().split())
s = input()
ret = ""

ini = s[0]
ret += ini

is_renzoku = False

for key, v in enumerate(s):
    if key == 0:
        continue
    if v != ini and k != 0:
        is_renzoku = True
        if v == "R":
            ret += "L"
        else:
            ret += "R"
    else:
        if is_renzoku:
            k -= 1
        is_renzoku = False
        ret += v

ans = 0
for key, v in enumerate(ret):
    if key == 0: continue
    if v == ret[key-1]: ans += 1

print(ans)


### FIXED CODE ###

n, k = map(int, input().split())
s = input()
ret = ""

ini = s[0]
ret += ini

is_renzoku = False

for key, v in enumerate(s):
    if key == 0:
        continue
    if v != ini and k != 0:
        is_renzoku = True
        if v == "R":
            ret += "L"
        else:
            ret += "R"
    else:
        if is_renzoku:
            k -= 1
        is_renzoku = False
        ret += v

ans = 0
for key, v in enumerate(ret):
    if key == 0: continue
    if v == ret[key-1]: ans += 1

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

def two_int():
    N, K = map(int, input().split())
    return N,K

def one_int():
    return int(input())

def one_str():
    return input()

def many_int():
    return list(map(int, input().split()))

N,Q=two_int()
S=one_str()

for i in range(Q):
    l,r =two_int()
    print(S[l-1:r].count("AC"))

### FIXED CODE ###

def two_int():
    N, K = map(int, input().split())
    return N,K

def one_int():
    return int(input())

def one_str():
    return input()

def many_int():
    return list(map(int, input().split()))

length, N=two_int()

S=one_str()

ac_list = [0]

hoge = 0
for i in range(length-1):
    if S[i:i+2]=="AC":
        hoge += 1
    ac_list.append(hoge)

for i in range(N):
    l, r = two_int()
    print(ac_list[r-1] - ac_list[l-1])
### BUGGY CODE ###

import numpy as np
H,W,A,B = map(int, input().split())
ans=np.zeros([H,W], int)
ans[:B,A:]=1
ans[B:,:A]=1
for x in ans:
    maped_num = map(str, x) #格納される数値を文字列にする
    mojiretsu = ''.join(maped_num)
    print(''.join(mojiretsu))




### FIXED CODE ###

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

for _ in range(B):
  print(''.join(['0'] * A + ['1'] * (W-A)))
for _ in range(H-B):
  print(''.join(['1'] * A + ['0'] * (W-A)))
### BUGGY CODE ###

#
import sys
import math
#import numpy as np
import itertools
from collections import Counter
# いくつか入力
n,p = (int(i) for i in input().split())
# 空白区切りの数列をリストに代入
s = [int(i) for i in list(input())] 

answer = 0
#print(s)
q=0
x=[]
if p == 2 or p == 5:
    for i in range(n-1,-1,-1):
        if s[i]%p == 0:
            answer += i+1
else:
    d=1
    for i in range(n-1,-1,-1):
        q = (d*s[i]+q)%p
        x.append(q)
        d = (d * 10)
    #print(x)
    counter = Counter(x)
    #print(counter)

    for k in counter:
    #    print(k)
        if k==0:
            answer += counter[k] * (counter[k]+1) // 2
        else:
            answer += counter[k] * (counter[k]-1) // 2

print(answer)



### FIXED CODE ###

#
import sys
import math
#import numpy as np
import itertools
from collections import Counter
# いくつか入力
n,p = (int(i) for i in input().split())
# 空白区切りの数列をリストに代入
s = [int(i) for i in list(input())] 

answer = 0
#print(s)
q=0
x=[]
if p == 2 or p == 5:
    for i in range(n-1,-1,-1):
        if s[i]%p == 0:
            answer += i+1
else:
    d=1
    for i in range(n-1,-1,-1):
        q = (d*s[i]+q)%p
        x.append(q)
        d = (d * 10)%p
    #print(x)
    counter = Counter(x)
    #print(counter)

    for k in counter:
    #    print(k)
        if k==0:
            answer += counter[k] * (counter[k]+1) // 2
        else:
            answer += counter[k] * (counter[k]-1) // 2

print(answer)
### BUGGY CODE ###

a= list(map(int,input().split()))
N = a[0]
K = a[1]

a = [0]*K

for i in range(K):
    x = K-i-1
    a[x] = (K//(x+1))**N

    t = 2
    while t*(x+1)<=K:
        a[x] = a[x] - a[t*(x+1)-1]
        t = t+1

s = 0
for i in range(K):
    s = s + (i+1)*a[i]

ans = s%(10**9+7)

print(ans)

### FIXED CODE ###

a= list(map(int,input().split()))
N = a[0]
K = a[1]

a = [0]*K
mod = 10**9+7

for x in range(K,0,-1):
    a[x-1] = pow(K//x, N,mod)
    for t in range(2,K//x+1):
        a[x-1] -= a[t*x-1]

s = 0
for i in range(K):
    s += (i+1)*a[i]

ans = s%mod

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

def z_algo(S):
    N = len(S)
    A = [0]*N
    i = 1; j = 0
    A[0] = l = len(S)
    while i < l:
        while i+j < l and S[j] == S[i+j]:
            j += 1
        if not j:
            i += 1
            continue
        A[i] = j
        k = 1
        while l-i > k < j - A[k]:
            A[i+k] = A[k]
            k += 1
        i += k; j -= k
    return A

N = int(input())
S = input()
MAX = 0

for i in range(N-1):
    A = z_algo(S[i:])
    for j in range(len(A)):
        if MAX < A[j] and A[j] <= j:
            MAX = A[j]

print(MAX)

### FIXED CODE ###

def z_algo(S):
    N = len(S)
    A = [0]*N
    i = 1; j = 0
    A[0] = l = len(S)
    while i < l:
        while i+j < l and S[j] == S[i+j]:
            j += 1
        if not j:
            i += 1
            continue
        A[i] = j
        k = 1
        while l-i > k < j - A[k]:
            A[i+k] = A[k]
            k += 1
        i += k; j -= k
    return A

N = int(input())
S = input()
MAX = 0

for i in range(N-1):
    A = z_algo(S[i:])
    for j in range(len(A)):
        if MAX < A[j] and A[j] <= j:
            MAX = A[j]

print(MAX)
### BUGGY CODE ###

n = int(input())
a = list(map(int, input().split()))
a_sum = [0]
a_ = 0
for i in range(n):
    a_ = a_ + a[i]
    a_sum.append(a_)
count = 0
for i in range(n + 1):
    for j in range(i + 1, n + 1):
        if a_sum[i] == a_sum[j]:
            count = count + 1
print(count)

### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
a_sum = [0]
a_ = 0
for i in range(n):
    a_ = a_ + a[i]
    a_sum.append(a_)
count = {}
for i in range(n + 1):
    if a_sum[i] not in count:
        count[a_sum[i]] = 1
    else:
        count[a_sum[i]] = count[a_sum[i]] + 1
count2 = 0
for i in count:
    count2 = count2 + int(count[i] * (count[i] - 1) / 2)
print(count2)
### BUGGY CODE ###

k=int(input())


cnt=0
for i in range(1,k):
    for j in range(1,k+2):
        if i*j<k:
            cnt+=1
print(cnt)
        

### FIXED CODE ###

k=int(input())


cnt=0
if k>6:
    for i in range(7,k):
        for j in range(1,k):
            
                
            if i*j<k:
                cnt+=1
            else:
                break
print(cnt+k-1+((k-1)//2)+((k-1)//3)+((k-1)//4)+((k-1)//5)+((k-1)//6))
### BUGGY CODE ###

import sys

sys.setrecursionlimit(2*10**5)

n, q = map(int, input().split())
graph = {i: set() for i in range(n)}
for _ in range(n-1):
    a, b = map(lambda x: int(x)-1, input().split())
    graph[a].add(b)
    graph[b].add(a)
ans = [0] * n
for _ in range(q):
    p, x = map(int, input().split())
    ans[p-1] += x

def dfs(now, parent):
    if parent != -1:
        ans[now] += ans[parent]
    for i in graph[now]:
        if i != parent:
            dfs(i, now)

dfs(0, -1)
print(' '.join(map(str, ans)))


### FIXED CODE ###

import sys

sys.setrecursionlimit(10**7)
input = sys.stdin.readline

n, q = map(int, input().split())
graph = {i: [] for i in range(n)}
for a, b in [[int(i)-1 for i in input().split()] for _ in range(n-1)]:
    graph[a].append(b)
    graph[b].append(a)
ans = [0] * n
for p, x in [[int(i) for i in input().split()] for _ in range(q)]:
    ans[p-1] += x

def dfs(now, parent):
    if parent != -1:
        ans[now] += ans[parent]
    for i in graph[now]:
        if i == parent:
            continue
        dfs(i, now)

dfs(0, -1)
print(' '.join(map(str, ans)))
### BUGGY CODE ###

# coding: utf-8
import sys
#from operator import itemgetter
sysread = sys.stdin.buffer.readline
read = sys.stdin.buffer.read
#from heapq import heappop, heappush
#from collections import defaultdict
sys.setrecursionlimit(10**7)
import math
#from itertools import product, accumulate, combinations, product
#import bisect
#import numpy as np
#from copy import deepcopy
#from collections import deque

INF = 1 << 50


def run():
    N, K = map(int, sysread().split())
    A = list(map(int, sysread().split()))

    l = 0
    r = 10**9
    eps = 1e-8
    while int(l) != int(r):
        test = (l + r) / 2
        sum = 0
        for a in A:
            val1 = a / test
            val2 = a // test
            if val1 == val2:
                sum += val2 - 1
            else:
                sum += val2
        if sum > K:
            l = test
        elif a < K:
            r = test
        else:# sum == K
            r = test
    if int(l) == 0:
        print(1)
        return
    if int(l) == l:
        sum = 0
        for a in A:
            sum += (a - eps) // int(l)
        if sum == K:
            print(int(l))
            return

    print(int(l)+1)

if __name__ == "__main__":
    run()

### FIXED CODE ###

# coding: utf-8
import sys
#from operator import itemgetter
sysread = sys.stdin.buffer.readline
read = sys.stdin.buffer.read
#from heapq import heappop, heappush
#from collections import defaultdict
sys.setrecursionlimit(10**7)
import math
#from itertools import product, accumulate, combinations, product
#import bisect
#import numpy as np
#from copy import deepcopy
#from collections import deque

INF = 1 << 50


def run():
    N, K = map(int, sysread().split())
    A = list(map(int, sysread().split()))

    l = 0
    r = 10**9
    while int(l) != int(r):
        #print(l, r)
        test = (l + r) / 2
        sum = 0
        for a in A:
            sum += math.ceil(a / test) - 1

        if sum > K:
            l = test
        elif sum < K:
            r = test
        else:# sum == K
            r = test
        if int(r) == r and r-l < 1:
            print(int(r))
            return

    if int(l) == 0:
        print(1)
        return
    if int(l) == l:
        sum = 0
        for a in A:
            sum += math.ceil(a / int(l)) - 1
        if sum == K:
            print(int(l))
            return

    print(int(l)+1)

if __name__ == "__main__":
    run()
### BUGGY CODE ###


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

alist.sort()
blist=alist
blist=list(set(alist))

for i in range(n-1):
    for j in range(i+1,n):
        if alist[j]%alist[i]==0:
            if alist[j] in blist:
                blist.remove(alist[j])
'''
ans=0
for i in range(len(blist)):
    if blist[i]>0:
        ans+=1

print(ans)
'''
print(len(blist))

### FIXED CODE ###


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


alist.sort()

hurui=[0]*(alist[-1]+1)

for i in range(n):
    for j in range(1,alist[-1]//alist[i]+1):
        hurui[alist[i]*j]+=1
ans=0
for i in range(n):
    if hurui[alist[i]]==1:
        ans+=1
print(ans)
### BUGGY CODE ###

def main():
    N = int(input())
    a = list(map(int, input().split()))
    A = [0, a.count(1), a.count(2), a.count(3)]
    floatN = N*1.0
    dp = [[[0]*(N+1) for i in range(N+1)] for j in range(N+1)]
    for k in range(A[3]+1):
        for j in range(A[2]+A[3] + 1 - k):
            for i in range(N + 1 - k - j):
                if i + j+k == 0:
                    continue
                dp[i][j][k] = floatN
                if i > 0:
                    dp[i][j][k] += dp[i-1][j][k] * i
                if j > 0:
                    dp[i][j][k] += dp[i+1][j-1][k] * j
                if k > 0:
                    dp[i][j][k] += dp[i][j+1][k-1] * k
                dp[i][j][k] /= (i+j+k)

    print(dp[A[1]][A[2]][A[3]])
main()


### FIXED CODE ###

def main():
    N = int(input())
    A = list(map(int, input().split()))
    a = A.count(1)
    b = A.count(2)
    c = A.count(3)
    floatN = N*1.0
    dp = [[[.0]*(N+1) for i in range(N+1)] for j in range(N+1)]

    for k in range(c+1):
        for j in range(b+c + 1 - k):
            for i in range(N + 1 - k - j):
                if i + j+k == 0:
                    continue
                dp[i][j][k] = floatN
                if i > 0:
                    dp[i][j][k] += dp[i-1][j][k] * i
                if j > 0:
                    dp[i][j][k] += dp[i+1][j-1][k] * j
                if k > 0:
                    dp[i][j][k] += dp[i][j+1][k-1] * k
                dp[i][j][k] /= (i+j+k)
    print(dp[a][b][c])


main()
### BUGGY CODE ###

N = int(input())


for i in range(1, N+1):
    sum = 0

    range_x = int((i-5)**0.5)+1 if i-5 >0 else 0
    for x in range(1, range_x):
        range_y = int((i-x**2-x-3)**0.5)+1 if i-x**2-x-3 > 0 else 0
        for y in range(1, range_y):
            range_z = int((i-x**2-y**2-x*y-x-y)**0.5)+1 if i-x**2-y**2-x*y-x-y > 0 else 0
            for z in range(1, range_z):
                if x**2 + y**2 + z**2 + x*y + y*z + z*x == i:
                    sum += 1
    print(sum)

### FIXED CODE ###

N = int(input())

ans = [0]*(10**4+1)

for x in range(1, 10**2):
    for y in range(1, 10**2):
        for z in range(1, 10**2):
            n = x**2+y**2+z**2+x*y+y*z+z*x
            if n <10**4+1:
                ans[n] += 1

for i in range(1, N+1):
    print(ans[i])
### BUGGY CODE ###

n, a, b = map(int, input().split())
ans = []
c = 0

if n == a + b:
    print(a)
    exit()

elif a == 0:
    print(0)
    exit()


while True:
    

    for i in range(a):
        
        if len(ans) == n:
            print(ans.count("b"))
            exit()
        ans.append("b")
        

    for j in range(b):
        if len(ans) == n:
            print(ans.count("b"))
            exit()
        ans.append("r")



### FIXED CODE ###

n, a, b = map(int, input().split())
v = n

if n == a + b:
    print(a)
    exit()

elif a == 0:
    print(0)
    exit()



c = n % (a +b)
if n % (a +b) < a:
    print((a * (n//(a+b))) + (n %(a+b)))
    exit()
else:
    print((a * (n//(a+b))) + a)
    exit()
### BUGGY CODE ###

#pragma GCC optimize("Ofast")

a=int(input())

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

sum=0
b=0
mod = pow(10,9)+7

for i in range(a-1):
  for j in range(i+1,a):
    sum=sum+d[i]*d[j]
    b=pow(sum,1,mod)

print(b)

### FIXED CODE ###

MOD = 10 ** 9 + 7

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

total=sum(alst)
sum=0

# for i in range(n-1):
#   for j in range(i+1,n):
#     sum=pow(sum+alst[i]*alst[j],1,MOD)

# print(sum)

for a in alst:
  sum = sum+a * (total - a)
  sum %= MOD

sum *= pow(2, MOD - 2, MOD)
sum %= MOD
print(sum)
### BUGGY CODE ###

n,k = list(map(int,input().split()))
x = n
if k==1:
    print(0)
else:
    while x > abs(x-k):
        x = abs(x-k)
    print(x)

### FIXED CODE ###

n,k = list(map(int,input().split()))
x = n
if n>=k:
    x = n%k
if x >abs(x-k):
    print(abs(x-k))
else:
    print(x)
### BUGGY CODE ###

import numpy as np

in_list = []
for i in range(2):
    in_list.append(input())
N,S = in_list
N = int(N)
res = 0
for i in range(N-2):
    for j in range(1+i,N-1):
        for k in range(1+j,N):
            if S[i] != S[j] and S[j] != S[k] and S[i] != S[k]:
                if j-i != k-j:
                    res += 1

print(res)

### FIXED CODE ###

import numpy as np
in_list = []
for i in range(2):
    in_list.append(input())
N,S = in_list
N = int(N)

res = 0
for i in range(N-2):
    n = 1
    while True:
        j = i+n
        k = j+n
        if k > N-1: break
        res += (S[i] != S[j] and S[j] != S[k] and S[k] != S[i])
        n += 1
    
    
rgb = S.count("R") * S.count("G") * S.count("B")
print(rgb - res)