Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
N = int(input)
An = [int(x) for x in input().split()]

num = 0.
for i in An:
  num += 1/i

print(1/num)

Fixed submission:

N = int(input())
An = [int(x) for x in input().split()]

num = 0
for i in An:
	num += 1/i

print(1/num)
Buggy python submission (verdict: Runtime Error):
s = input(); a = input(); c = 0
for i in range(4):
  if s[i] == a[i]: c += 1
print(c)	

Fixed submission:
s = input(); a = input(); c = 0
for i in range(3):
  if s[i] == a[i]: c += 1
print(c)
Buggy python submission (verdict: Runtime Error):
a, b = [int(i) for i in input().split()]
print(min([num for num in range(1, 20) if (a - 1) * (num - 1) + a > b]))

Fixed submission:
a, b = [int(i) for i in input().split()]
print(min([num for num in range(0, 20) if (a - 1) * (num - 1) + a >= b]))
Buggy python submission (verdict: Runtime Error):
x, t = map(int, input().split())
print(x - t if x -t > 0 else 0)

Fixed submission:
print('Yes' if '9' in input() else 'No')
Buggy python submission (verdict: Runtime Error):
from scipy.special import comb

def c(a, b):
    return comb(a, b, exact=True)

n, k = map(int, input().split())
MOD = 10**9+7
memo = 0
for i in range(1, k+1):
    # tmp = c(n-k+i, i)
    # print(((tmp - memo) * c(k-1, i-1)) % MOD)
    # memo += tmp
    # memo %= MOD
    tmp = ((c(n-k+i, i) - memo) * c(k-1, i-1)) % MOD
    print(tmp)
    memo += tmp
    memo %= MOD


Fixed submission:
from scipy.misc import comb

def c(a, b):
    return comb(a, b, exact=True)

n, k = map(int, input().split())
MOD = 10**9+7
memo = 0
for i in range(1, k+1):
    print((c(n-k+1, i) * c(k-1, i-1)) % MOD)
Buggy python submission (verdict: Runtime Error):
print(*sorted(range(1,int(input())+1),key=lambda _:[(s,-int(p))for s,p in input().split()]))

Fixed submission:
n = int(input())
SP = []
for i in range(n):
    s, p = input().split()
    SP.append([s, int(p), i+1])
SP.sort(key=lambda x: (x[0], -x[1]))
for _, _, i in SP:
    print(i)
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

from random import choices

n, m, d = map(int, input().split())
if n > 10**3*5 or m > 10**3*5:
    _max = max(n, m)
    n = max(1, int(n // (_max/10**3*5)))
    m = max(2, int(m // (_max/10**3*5)))
    d = int(d // (_max/10**3*5))

_sum = 0
for i in range(10**3*5):
    A = choices(list(range(1, n+1)), k=m)
    # print(A)
    for j in range(m-1):
        if abs(A[j] - A[j+1]) == d:
            _sum += 1

print(_sum/(10**3*5))


Fixed submission:
# -*- coding: utf-8 -*-

n, m, d = map(int, input().split())
if d == 0:
    print(((n-d)/(n**2))*(m-1))
else:
    print((2*(n-d)/(n**2))*(m-1))
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

n = int(input())
A = list(map(int, input().split()))
A = [A[i]-(i+1) for i in range(n)]
A.sort()

ans = 10**100
for i in [n//2-1, n//2, n//2+1]:
    ans = min(ans, sum([abs(A[j]-A[i]) for j in range(n)]))

print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

n = int(input())
A = list(map(int, input().split()))
A = [A[i]-(i+1) for i in range(n)]
A.sort()

if n == 1:
    print(0)
    exit()

ans = 10**100
for i in [n//2-1, n//2]:
    ans = min(ans, sum([abs(A[j]-A[i]) for j in range(n)]))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-

from copy import deepcopy
n = int(input())
A = list(map(int, input().split()))
for i in range(len(A)):
    A[i] -= i + 1

ans = 10 ** 100
for a in A:
    B = deepcopy(A)
    for i in range(len(A)):
        B[i] -= a
    count = 0
    for b in B:
        count += abs(b)
    ans = min(ans, count)

print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

n = int(input())
A = list(map(int, input().split()))
A = [A[i]-(i+1) for i in range(n)]
A.sort()

if n == 1:
    print(0)
    exit()

ans = 10**100
for i in [n//2-1, n//2]:
    ans = min(ans, sum([abs(A[j]-A[i]) for j in range(n)]))

print(ans)
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

a = int(input())
b = int(input())
if a <= 8 and b <= 8:
    print('Yay!')
else:
    print(':(')


Fixed submission:
# -*- coding: utf-8 -*-

a, b = map(int, input().split())
if a <= 8 and b <= 8:
    print('Yay!')
else:
    print(':(')
Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-

n, m = map(int, input().split())
A = [list(map(int, input().split())) for _ in range(n)]
ans = 0

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]+A[i-1][0]+A[i-1][1]+A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]+A[i-1][0]+A[i-1][1]-A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]+A[i-1][0]-A[i-1][1]+A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]+A[i-1][0]-A[i-1][1]-A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]-A[i-1][0]+A[i-1][1]+A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]-A[i-1][0]+A[i-1][1]-A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]-A[i-1][0]-A[i-1][1]+A[i-1][2])
ans = max(ans, dp[n][m])

dp = [[0 for j in range(m+1)] for i in range(n+1)]
for i in range(1, n+1):
    for j in range(1, m+1):
        dp[i][j] = max(dp[i-1][j], dp[i-1][j-1]-A[i-1][0]-A[i-1][1]-A[i-1][2])
ans = max(ans, dp[n][m])

print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

n, m = map(int, input().split())
A = [list(map(int, input().split())) for _ in range(n)]
ans = 0

for i in range(8):
    value_list = []
    for a in A:
        value_list.append((2*(i&1)-1)*a[0] + (2*((i>>1)&1)-1)*a[1] + (2*((i>>2)&1)-1)*a[2])
    value_list.sort(reverse=True)
    ans = max(ans, sum(value_list[:m]))

print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
p_list = [int(input()) for _ in range(n)]

q_dict = {0:0}
for p in p_list:
    q_dict[p] = p_list.index(p)
length = 0
ans = 1
for i in range(1, n+1):
    if q_dict[i] > q_dict[i-1]:
        length += 1
        if length > ans:
            ans = length
    else:
        length = 1
print(n - ans)


Fixed submission:
n = int(input())
p_list = [int(input()) for _ in range(n)]

q_dict = {0:0}
for i in range(n):
    q_dict[p_list[i]] = i
length = 0
ans = 1
for i in range(1, n+1):
    if q_dict[i] > q_dict[i-1]:
        length += 1
        if length > ans:
            ans = length
    else:
        length = 1
print(n - ans)
Buggy python submission (verdict: Time Limit Exceeded):
s = input()
k = int(input())
ans_list = []

for i in range(len(s)):
    s_list = [s[j:j+i+1] for j in range(len(s)-i)]
    s_set_list = list(set(s_list))
    for m in range(len(s_set_list)):
        ans_list.append(s_set_list[m])

ans_list.sort()
print(ans_list[k-1])
# print(ans_list)


'''
ans_list = []
s_list = [s[i] for i in range(len(s))]
s_set_sorted = sorted(set(s_list))
for i in range(len(s_set_sorted)):
    ans_list.append(s_set_sorted[i])
if k <= len(ans_list):
    ans_list.sort()
    print(ans_list[k-1])
    exit()

s_queue = []
for i in range(len(s)-1):
    s_queue.append(s[i:i+2])
s_queue_set_sorted = sorted(set(s_queue))
for i in range(len(s_queue_set_sorted)):
    ans_list.append(s_queue_set_sorted[i])
if k <= len(ans_list):
    ans_list.sort()
    print(ans_list[k-1])
    exit()

print(s_set_sorted)
'''

Fixed submission:
s = input()
k = int(input())
ans_list = []

for i in range(5):
    s_list = [s[j:j+i+1] for j in range(len(s)-i)]
    s_set_list = list(set(s_list))
    for m in range(len(s_set_list)):
        ans_list.append(s_set_list[m])

ans_list.sort()
print(ans_list[k-1])
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
raw_a = list(map(int,input().split()))
a = [0] + raw_a + [0]
for i in range(1, n+1):  # スキップするもの
    count = 0
    for j in range(i-1):  # i-1まで
        count += abs(a[j+1] - a[j])
    count += abs(a[i+1] - a[i-1])
    for j in range(i+1, n+1):
        count += abs(a[j+1] - a[j])
    print(count)

Fixed submission:
n = int(input())
raw_a = list(map(int,input().split()))
a = [0] + raw_a + [0]

total = 0
for i in range(n+1):
    total += abs(a[i+1] - a[i])

for i in range(1, n+1):
    print(total - (abs(a[i]-a[i-1]) + abs(a[i+1]-a[i]) - abs(a[i+1]-a[i-1])))
Buggy python submission (verdict: Runtime Error):
c = [list(map(str, input().split())) for i in range(3)]
print(c[0][0] + c[1][1] + c[2][2])

Fixed submission:
c = [input() for i in range(3)]
print(c[0][0] + c[1][1] + c[2][2])
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

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

dict_A = {i: 0 for i in range(1, n+1)}
for a in A:
    dict_A[a] += 1

num_list = [[] for _ in range(n)]
for key in dict_A.keys():
    num_list[dict_A[key]].append(key)

ans = 0
count = len(dict_A.keys())
pointer = 1
while count > k:
    if len(num_list[pointer]) == 0:
        pointer += 1
        continue
    ans += pointer
    count -= 1
    del num_list[pointer][0]
print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

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

dict_A = {}
for a in A:
    if a not in dict_A:
        dict_A[a] = 1
    else:
        dict_A[a] += 1

if len(dict_A.keys()) <= k:
    print(0)
    exit()

sorted_A = sorted(dict_A.items(), key=lambda x: x[1])

ans = 0
for i in range(len(dict_A.keys())-k):
    ans += sorted_A[i][1]

print(ans)

Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

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

dict_A = {}
for a in A:
    if a not in dict_A:
        dict_A[a] = 1
    else:
        dict_A[a] += 1

num_list = [[] for _ in range(n)]
for key in dict_A.keys():
    num_list[dict_A[key]].append(key)

ans = 0
count = len(dict_A.keys())
pointer = 1
while count > k:
    if len(num_list[pointer]) == 0:
        pointer += 1
        continue
    ans += pointer
    count -= 1
    del num_list[pointer][0]
print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

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

dict_A = {}
for a in A:
    if a not in dict_A:
        dict_A[a] = 1
    else:
        dict_A[a] += 1

if len(dict_A.keys()) <= k:
    print(0)
    exit()

sorted_A = sorted(dict_A.items(), key=lambda x: x[1])

ans = 0
for i in range(len(dict_A.keys())-k):
    ans += sorted_A[i][1]

print(ans)
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

n = input()
if n[0] == n[1] and n[1] == n[2]:
    print('Yes')
elif n[1] == n[2] and n[3] == n[4]:
    print('Yes')
else:
    print('No')


Fixed submission:
# -*- coding: utf-8 -*-

n = input()
if n[0] == n[1] and n[1] == n[2]:
    print('Yes')
elif n[1] == n[2] and n[2] == n[3]:
    print('Yes')
else:
    print('No')
Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-


def binary_search(list, key):
    l = -1
    r = len(list)

    while r - l > 1:
        mid = l + (r - l) // 2
        if list[mid] > key:
            r = mid
        else:
            l = mid

    if r < len(list):
        return r
    else:
        return -1


n = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
C = list(map(int, input().split()))
A.sort()
B.sort()
C.sort()
ans = 0
for a in A:
    index_a = binary_search(B, a)
    if index_a != -1:
        for i in range(index_a, len(B)):
            index_b = binary_search(C, B[i])
            if index_b != -1:
                ans += n - index_b

print(ans)


Fixed submission:
# -*- coding: utf-8 -*-


def higher_search(list, key):
    l = -1
    r = len(list)

    while r - l > 1:
        mid = l + (r - l) // 2
        if list[mid] > key:
            r = mid
        else:
            l = mid

    if r == len(list):
        return -1
    else:
        return r


def lower_search(list, key):
    l = -1
    r = len(list)

    while r - l > 1:
        mid = r - (r - l) // 2
        if list[mid] < key:
            l = mid
        else:
            r = mid

    if l == -1:
        return -1
    else:
        return l


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

ans = 0
for b in B:
    a_index = lower_search(A, b)
    c_index = higher_search(C, b)
    if c_index == -1:
        c_index = n
    ans += (a_index + 1) * (n - c_index)

print(ans)
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

n, m = map(int, input().split())
A = {}
for i in range(m):
    data = list(map(int, input().split()))
    if data[0] not in A:
        A[data[0]] = 1
    else:
        A[data[0]] += 1
    if data[1] not in A:
        A[data[1]] = 1
    else:
        A[data[1]] += 1

for i in range(1, n+1):
    print(A[i])


Fixed submission:
# -*- coding: utf-8 -*-

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

A = {}
for i in range(1, n+1):
    A[i] = 0
for i in range(m):
    data = list(map(int, input().split()))
    A[data[0]] += 1
    A[data[1]] += 1

for i in range(1, n+1):
    print(A[i])
Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-

n, a = map(int, input().split())
X = list(map(int, input().split()))

# i番目までからj個選んで和をkにできる選び方の総数
# 選ばない状態も持ちたいから配列は1まわり大きく
dp = [[[0 for k in range(n*a+1)] for j in range(n+1)] for i in range(n+1)]

for i in range(n+1):
    for j in range(n+1):
        for k in range(n*a+1):
            # 初期条件
            if i == 0 and j == 0 and k == 0:
                dp[i][j][k] = 1

            # x_iが和を超過してしまう場合
            elif i > 0 and k < X[i-1]:
                dp[i][j][k] = dp[i-1][j][k]

            # 和を作れる場合
            # 加算する場合としない場合の両方を考える
            elif i > 0 and j > 0 and k >= X[i-1]:
                dp[i][j][k] = dp[i-1][j][k] + dp[i-1][j-1][k-X[i-1]]

            # その他
            else:
                dp[i][j][k] = 0

# i枚選んだ時の合計がiAであればよい
ans = 0
for i in range(1, n+1):
    ans += dp[n][i][i*a]

print(ans)


Fixed submission:
# -*- coding: utf-8 -*-

n, a = map(int, input().split())
X = list(map(int, input().split()))

# i番目までからj個選んで和をkにできる選び方の総数
# 選ばない状態も持ちたいから配列は1まわり大きく
dp = [[[0 for k in range(n*a+1)] for j in range(n+1)] for i in range(n+1)]

for i in range(n+1):
    for j in range(n+1):
        for k in range(n*a+1):
            # 初期条件
            if i == 0 and j == 0 and k == 0:
                dp[i][j][k] = 1

            # x_iが和を超過してしまう場合
            elif i > 0 and k < X[i-1]:
                dp[i][j][k] = dp[i-1][j][k]

            # 和を作れる場合
            # 加算する場合としない場合の両方を考える
            elif i > 0 and j > 0 and k >= X[i-1]:
                dp[i][j][k] = dp[i-1][j][k] + dp[i-1][j-1][k-X[i-1]]

            # その他
            else:
                dp[i][j][k] = 0

# i枚選んだ時の合計がiAであればよい
ans = 0
for i in range(1, n+1):
    ans += dp[n][i][i*a]

print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
import sys
A, B = map(int, raw_input().split())
counter = 0
while True:
  if abs(A - counter) == abs(B - counter) :
    print counter
    break
  counter += 1
  if counter > A and counter > B :
    print "IMPOSSIBLE"
    break

Fixed submission:
A, B = map(int, raw_input().split())

if (A + B) % 2 == 0:
  print (A + B)/2
else:
  print "IMPOSSIBLE"
Buggy python submission (verdict: Runtime Error):
n = input()
aa = []
xx = [-input()]
for _ in xrange(n - 1):
    aa.append(-input())
for a in aa:
    if a >= xx[-1]:
        xx.append(a)
    else:
        i = bisect.bisect_right(xx, a)
        if i == len(xx):
          i -= 1
        xx[i] = a
print len(xx)

Fixed submission:
import bisect
n = input()
aa = []
xx = [-input()]
for _ in xrange(n - 1):
    aa.append(-input())
for a in aa:
    if a >= xx[-1]:
        xx.append(a)
    else:
        i = bisect.bisect_right(xx, a)
        if i == len(xx):
          i -= 1
        xx[i] = a
print len(xx)

Buggy python submission (verdict: Runtime Error):
n = input()
aa = []
xx = [-input()]
for _ in xrange(n - 1):
    aa.append(-input())
for a in aa:
    if a >= xx[-1]:
        xx.append(a)
    else:
        i = bisect.bisect_right(xx, a)
        if i == len(xx):
          i -= 1
          xx[i] = a
print len(xx)

Fixed submission:
import bisect
n = input()
aa = []
xx = [-input()]
for _ in xrange(n - 1):
    aa.append(-input())
for a in aa:
    if a >= xx[-1]:
        xx.append(a)
    else:
        i = bisect.bisect_right(xx, a)
        if i == len(xx):
          i -= 1
        xx[i] = a
print len(xx)

Buggy python submission (verdict: Time Limit Exceeded):
N = raw_input()
counter = 0
color_array = []
color_array.append(int(raw_input()))
while counter < int(N)-1:
  newNum = int(raw_input())
  checker = 0
  listlength = len(color_array)
  while checker < listlength:
    if newNum > color_array[checker]:
      color_array[checker] = newNum
      break
    checker += 1
  if checker == listlength:
    color_array.append(newNum)
  counter += 1
  
print len(color_array)

Fixed submission:
import bisect
n = input()
aa = []
xx = [-input()]
for _ in xrange(n - 1):
    aa.append(-input())
for a in aa:
    if a >= xx[-1]:
        xx.append(a)
    else:
        i = bisect.bisect_right(xx, a)
        if i == len(xx):
          i -= 1
        xx[i] = a
print len(xx)
Buggy python submission (verdict: Runtime Error):
N = int(input())
line1 = list(map(int, input().split()))
line2 =[]

for i in range(len(line1) - 1):
    #print(str(i)+ "番目")
    a = 0
    for j in range(len(line1) - i - 1):
        #print(str(j)+"ばんめ")
        #print(line1[i+j],line1[i+j+1])
        if line1[i+j] >= line1[i+j+1]:
            a += 1
        else:
          #  print( "a=" + str(a))
         #   print()
            line2.append(a)
            break
        #print( "a=" + str(a))
       # print()
        line2.append(a)

print(max(line2))

Fixed submission:
N = int(input())
line1 = list(map(int, input().split()))
a,max = 0,0
for i in range(len(line1) - 1):
    if line1[i] >= line1[i+1]:
        a += 1
        if max < a:
            max = a
            
    else:
        a = 0
        
print(max)
Buggy python submission (verdict: Runtime Error):
N,K = map(int, input().split())
print(K * (k-1)**(N-1))

Fixed submission:
N,K = map(int, input().split())
print(K * (K-1)**(N-1))
Buggy python submission (verdict: Runtime Error):
set = input()
words = []
for i in range(len(set)):
    if set[i] == "0":
        words.append("0")
    if set[i] == "1":
        words.append("1")
    if set[i] == "B":
        words.pop(-1)
word = ""
for i in words:
    word += i
print(word)


Fixed submission:
set = input()
words = []
for i in range(len(set)):
    if set[i] == "0":
        words.append("0")
    if set[i] == "1":
        words.append("1")
    if set[i] == "B":
        try:
            words.pop(-1)
        except:
            pass
word = ""
for i in words:
    word += i
print(word)
Buggy python submission (verdict: Runtime Error):
    a = input()
    b = input()
    c = 0
    for i in range(3):
      if a[i] == b[i]:
        c += 1
    print(c)

Fixed submission:
a = input()
b = input()
c = 0
for i in range(3):
  if a[i] == b[i]:
    c += 1
print(c)

Buggy python submission (verdict: Runtime Error):
a = input()
b = input()
c = 0
for i in range(3):
  if a[a] == b[i]:
    c += 1
print(c)

Fixed submission:
a = input()
b = input()
c = 0
for i in range(3):
  if a[i] == b[i]:
    c += 1
print(c)
Buggy python submission (verdict: Time Limit Exceeded):
from sys import exit, stderr, stdin
input = stdin.readline
# setrecursionlimit(10**7)

def debug(var, name="hoge"):
    print(name +":" + str(type(var)) + " = " + repr(var), file=stderr)
    return

def gau(n):
    return n*(n+1)/2

def main():
    N = int(input())
    mods = [ i+1for i in range(N)]
    test = [mods[-1]]+mods[:-1]
    print(int(gau(N-1)))

if __name__ == "__main__":
    main()


Fixed submission:
from sys import exit, stderr, stdin
input = stdin.readline
# setrecursionlimit(10**7)

def debug(var, name="hoge"):
    print(name +":" + str(type(var)) + " = " + repr(var), file=stderr)
    return

def gau(n):
    return n*(n+1)//2

def main():
    N = int(input())
    if (N==1):
        print(0)
    else:
        print(gau(N-1))

if __name__ == "__main__":
    main()
Buggy python submission (verdict: Runtime Error):
from sys import exit, stderr, stdin
input = stdin.readline
def debug(var, name="hoge"):
    print(name +":" + str(type(var)) + " = " + repr(var), file=stderr)
    return


def main():
    L, R = [int(n) for n in input().split()]
    if (L//2019)<(R//2019):
        print(0)
    else:
        l = L%2019
        r = R%2019
        res = 2019**2
        for i in range(l,r+1):
            for j in range(i+1,r+1):
                res = min(res,(i*j)%MOD)
        print(res)


if __name__ == "__main__":
    main()


Fixed submission:
from sys import exit, stderr, stdin
input = stdin.readline
def debug(var, name="hoge"):
    print(name +":" + str(type(var)) + " = " + repr(var), file=stderr)
    return


def main():
    L, R = [int(n) for n in input().split()]
    if (L//2019)<(R//2019):
        print(0)
    else:
        l = L%2019
        r = R%2019
        res = 2019**2
        for i in range(l,r+1):
            for j in range(i+1,r+1):
                res = min(res,(i*j)%2019)
        print(res)


if __name__ == "__main__":
    main()