Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
s = map(lambda x: int(x), input().split())

ans = 'Odd' if s[0] * b[1] % 2 else 'Even'
print(ans)

Fixed submission:
a, b = input().split()

ans = 'Odd' if int(a) * int(b) % 2 else 'Even'
print(ans)
Buggy python submission (verdict: Runtime Error):
def resolve():
	n = int(input())
	ws = [input() for _ in range(n)]
	cnt = []
	for w in ws:
		if w in cnt:
			print('No')
			return
		if len(cnt) and cnt[-1][-1] != w[-1]:
			print('No')
			return
		cnt.append(w)
	print('Yes')
resolve()

Fixed submission:
def resolve():
	n = int(input())
	a = list(map(int, input().split()))
	ans = 0
	while True:
		again = True
		for i in range(n):
			if a[i] % 2:
				again = False
			a[i] = a[i] / 2
		if again:
			ans += 1
		else:
			break
	print(ans)
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	n, k = map(int, input().split())
	a = list(map(int, input().split()))
	c = Counter(a)
	lc = len(c.keys())
	if lc > k:
		v = sum(sorted(c.values())[:k-1])
		print(v)
	else:
		print(0)
resolve()

Fixed submission:
from collections import Counter

def resolve():
	n, k = map(int, input().split())
	a = list(map(int, input().split()))
	c = Counter(a)
	lc = len(c.keys())
	if lc > k:
		v = 0
		sc = sorted(c.values())
		for i in range(lc-k):
			v += sc[i]
		print(v)
	else:
		print(0)
resolve()
Buggy python submission (verdict: Runtime Error):
def check(s, t):
	for i in range(len(s)):
		if s[i] == t[i] or s[i] == '?':
			continue
		return False
	return True

def norm(s):
	ans = []
	for i in s:
		ans.append('a' if i == '?' else i)
	ans[0] = 'a'
	return "".join(ans)

def resolve():
	s = list(input())
	t = list(input())
	if len(s) < len(t):
		print('UNRESTORABLE')
		return
	for i in range(len(s) - len(t) + 1):
		if check(s[i:i+len(s)], t):
			for j in range(len(t)):
				s[i+j] = t[j]
			print(norm(s))
			return
	print('UNRESTORABLE')
resolve()

Fixed submission:
import copy

def check(s, t, k):
	for i in range(len(t)):
		if s[i+k] != t[i] and s[i+k] != '?':
			return False
	return True

def construct(s, t, k):
	ans = copy.deepcopy(s)
	for i in range(len(t)):
		ans[i+k] = t[i]
	for i in range(len(s)):
		if ans[i] == '?':
			ans[i] = 'a'
	return "".join(ans)

def resolve():
	s = list(input())
	t = list(input())
	ans = []
	if len(s) < len(t):
		print('UNRESTORABLE')
		return
	for i in range(len(s) - len(t) + 1):
		if check(s, t, i):
			ans.append(construct(s, t, i))
	if len(ans) >= 1:
		print(min(ans))
	else:
		print('UNRESTORABLE')
resolve()

Buggy python submission (verdict: Runtime Error):
def check(s, t):
	for i in range(len(s)):
		if s[i] == t[i] or s[i] == '?':
			continue
		return False
	return True

def norm(s):
	ans = []
	for i in s:
		ans.append('a' if i == '?' else i)
	ans[0] = 'a'
	return "".join(ans)

def resolve():
	s = list(input())
	t = list(input())
	for i in range(len(s) - len(t) + 1):
		if check(s[i:i+len(s)], t):
			for j in range(len(t)):
				s[i+j] = t[j]
			print(norm(s))
			return
	print('UNRESTORABLE')
resolve()

Fixed submission:
import copy

def check(s, t, k):
	for i in range(len(t)):
		if s[i+k] != t[i] and s[i+k] != '?':
			return False
	return True

def construct(s, t, k):
	ans = copy.deepcopy(s)
	for i in range(len(t)):
		ans[i+k] = t[i]
	for i in range(len(s)):
		if ans[i] == '?':
			ans[i] = 'a'
	return "".join(ans)

def resolve():
	s = list(input())
	t = list(input())
	ans = []
	if len(s) < len(t):
		print('UNRESTORABLE')
		return
	for i in range(len(s) - len(t) + 1):
		if check(s, t, i):
			ans.append(construct(s, t, i))
	if len(ans) >= 1:
		print(min(ans))
	else:
		print('UNRESTORABLE')
resolve()
Buggy python submission (verdict: Runtime Error):
def dense(a, b):
	return b / (a+b)

def resolve():
	a, b, c, d, e, f = map(int, input().split())
	ws = set()
	ss = set()
	for i in range(31):
		for j in range(31):
			if a*100*i + b*100*j <= f:
				ws.add(a*100*i + b*100*j)
	for i in range(3001):
		for j in range(3001):
			if c*i + j*d <= f:
				ss.add(c*i + j*d)
	ans_w, ans_s = -1, 0
	lim = e / (100+e)
	for wv in ws:
		for sv in ss:
			if wv + sv > f:
				continue
			if wv + sv == 0:
				continue
			if lim >= dense(wv, sv):
				if dense(ans_w, ans_s) <= dense(wv, sv):
					ans_w, ans_s = wv, sv
	print(ans_w + ans_s, ans_s)
resolve()

Fixed submission:
def resolve():
	n = int(input())
	a = int(input())
	print(n**2 - a)
resolve()
Buggy python submission (verdict: Runtime Error):
from math import gcd

def resolve():
	n = int(input())
	ans = int(input())
	for i in range(n-1):
		v = int(input())
		ans = ans * v // gcd(ans, v)
	print(ans)


Fixed submission:
def resolve():
	s = input()
	print('Yes' if s[0] == s[-1] else 'No')
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
    n = int(input())
	ans = 0
	for i in range(1, n+1):
		if i % 2 == 0:
			ans += 1
	print(ans)
resolve()

Fixed submission:
def resolve():
	n = int(input())
	ans = 0
	dp = [0]*(n+1)
	for i in range(1, n+1):
		if i % 2 == 0:
			dp[i] = dp[i//2] + 1
	print(dp.index(max(dp)) or 1)
resolve()
Buggy python submission (verdict: Time Limit Exceeded):
def resolve():
	n = int(input())
	a = list(map(int, input().split()))
	ans = float('inf')
	for i in range(1, n):
		left = sum(a[:i])
		right = sum(a[i:])
		ans = min(ans, abs(left - right))
	print(ans)
resolve()

Fixed submission:
def resolve():
	n = int(input())
	a = list(map(int, input().split()))
	m = sum(a)
	cnt = 0
	ans = float('inf')
	for i in range(len(a) - 1):
		cnt = cnt + a[i]
		ans = min(ans, abs(m - cnt*2))
	print(ans)
resolve()
Buggy python submission (verdict: Runtime Error):
from math import factorial

def resolve():
	n, m = map(int, input().split())
	mod = 10**9+7
	if abs(n - m) > 1:
		print(0)
		return
	a = factorial(m) % mod * factorial(n) % mod
	if (n + m) % 2 == 0:
		a = a * 2 % mod
	print(a)
resolve()

Fixed submission:
def resolve():
	x, a, b = map(int, input().split())
	if b - a > x:
		print('dangerous')
	elif a >= b:
		print('delicious')
	else:
		print('safe')
resolve()
Buggy python submission (verdict: Runtime Error):
import sys
from io import StringIO
import unittest

sys.setrecursionlimit(10**5)

def rec(n, a, seen):
	if seen[n-1]:
		return -1
	if a[n-1] == 2:
		return seen.count(True) + 1
	seen[n-1] = True
	return rec(a[n-1], a, seen)

def resolve():
	n = int(input())
	a = []
	seen = [False]*n
	for _ in range(n):
		a.append(int(input()))
	print(rec(1, a, seen))
resolve()

Fixed submission:
import sys
from io import StringIO
import unittest

sys.setrecursionlimit(10**6)

def rec(n, a, seen):
	if seen[n-1]:
		return -1
	if a[n-1] == 2:
		return seen.count(True) + 1
	seen[n-1] = True
	return rec(a[n-1], a, seen)

def resolve():
	n = int(input())
	a = []
	seen = [False]*n
	for _ in range(n):
		a.append(int(input()))
	print(rec(1, a, seen))
resolve()

Buggy python submission (verdict: Runtime Error):
import sys
from io import StringIO
import unittest

sys.setrecursionlimit(100**5)

def rec(n, a, seen):
	if seen[n-1]:
		return -1
	if a[n-1] == 2:
		return seen.count(True) + 1
	seen[n-1] = True
	return rec(a[n-1], a, seen)

def resolve():
	n = int(input())
	a = []
	seen = [False]*n
	for _ in range(n):
		a.append(int(input()))
	print(rec(1, a, seen))
resolve()

Fixed submission:
import sys
from io import StringIO
import unittest

sys.setrecursionlimit(10**6)

def rec(n, a, seen):
	if seen[n-1]:
		return -1
	if a[n-1] == 2:
		return seen.count(True) + 1
	seen[n-1] = True
	return rec(a[n-1], a, seen)

def resolve():
	n = int(input())
	a = []
	seen = [False]*n
	for _ in range(n):
		a.append(int(input()))
	print(rec(1, a, seen))
resolve()

Buggy python submission (verdict: Runtime Error):
def rec(n, a, seen):
	if seen[n-1]:
		return -1
	if a[n-1] == 2:
		return seen.count(True) + 1
	seen[n-1] = True
	return rec(a[n-1], a, seen)

def resolve():
	n = int(input())
	a = []
	seen = [False]*n
	for i in range(n):
		a.append(int(input()))
	print(rec(1, a, seen))
resolve()

Fixed submission:
import sys
from io import StringIO
import unittest

sys.setrecursionlimit(10**6)

def rec(n, a, seen):
	if seen[n-1]:
		return -1
	if a[n-1] == 2:
		return seen.count(True) + 1
	seen[n-1] = True
	return rec(a[n-1], a, seen)

def resolve():
	n = int(input())
	a = []
	seen = [False]*n
	for _ in range(n):
		a.append(int(input()))
	print(rec(1, a, seen))
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	n, m = map(int, input().split())
	mod = 10**9+7
	if abs(n - m) > 1:
		print(0)
		return
	a = factorial(m) % mod * factorial(n) % mod
	if (n + m) % 2 == 0:
		a = a * 2 % mod
	print(a)
resolve()

Fixed submission:
from math import factorial

def resolve():
	n, m = map(int, input().split())
	mod = 10**9+7
	if abs(n - m) > 1:
		print(0)
		return
	a = factorial(m) % mod * factorial(n) % mod
	if (n + m) % 2 == 0:
		a = a * 2 % mod
	print(a)
resolve()
Buggy python submission (verdict: Runtime Error):
from math import gcd

def ngcd(nums):
	n = 0
	for i in nums:
		n = gcd(n, i)
	return n

def resolve():
	nums = list(map(int, input().split()))
	t = ngcd(nums)
	if t != 1:
		nums = [int(i/t) for i in nums]
	if gcd(nums[0], nums[1]) == 1:
		print("YES")
	else:
		print("NO")
resolve()

Fixed submission:
def resolve():
	a, b, c = map(int, input().split())
	ans = "NO"
	for i in range(1, b+1):
		if i*a % b == c:
			ans = "YES"
			break
	print(ans)
resolve()

Buggy python submission (verdict: Runtime Error):
from math import gcd

def ngcd(nums):
	n = 0
	for i in nums:
		n = gcd(n, i)
	return n

def resolve():
	nums = list(map(int, input().split()))
	t = ngcd(nums)
	if t != 1:
		nums = [int(i/t) for i in nums]
	if gcd(nums[0], nums[1]) == 1:
		print("YES")
	else:
		print("NO")
resolve()

Fixed submission:
def resolve():
	a, b, c = map(int, input().split())
	ans = "NO"
	for i in range(1, b+1):
		if i*a % b == c:
			ans = "YES"
			break
	print(ans)
resolve()
Buggy python submission (verdict: Runtime Error):
def cnt(s, b):
	ans = []
	for i in s:
		if i in b:
			ans.append(i)
	return ans

def intersection(lst1, lst2):
	lst3 = [value for value in lst1 if value in lst2]
	cnt1 = cnt(lst1, lst3)
	cnt2 = cnt(lst2, lst3)

	if len(cnt1) > len(cnt2):
		return cnt2
	else:
		return cnt1
resolve()

Fixed submission:
def cnt(s, b):
	ans = []
	for i in s:
		if i in b:
			ans.append(i)
	return ans

def resolve():
	n = int(input())
	h = []
	for i in range(n):
		h.append(input())
	ans = h[0]
	for i in range(1, n):
		sec = list(set(ans) & set(h[i]))
		tmp = ""
		for j in sec:
			tmp += j*min(ans.count(j), h[i].count(j))
		ans = tmp

	print("".join(sorted(ans)))
resolve()
Buggy python submission (verdict: Time Limit Exceeded):
def resolve():
	n = int(input())
	ans = 1
	for i in range(1, n+1):
		ans *= i
	ans %= (10**9 + 7)
	print(ans)
resolve()

Fixed submission:
def resolve():
	n = int(input())
	ans = 1
	for i in range(1, n+1):
		ans *= i
		ans %= (10**9 + 7)
	print(ans)
resolve()

Buggy python submission (verdict: Time Limit Exceeded):
def resolve():
	n = int(input())
	ans = 1
	for i in range(1, n+1):
		ans *= i
	print(ans % (10**9 + 7))
resolve()

Fixed submission:
def resolve():
	n = int(input())
	ans = 1
	for i in range(1, n+1):
		ans *= i
		ans %= (10**9 + 7)
	print(ans)
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	s = input()
	a = float('inf')
	z = 0
	for i in s:
		if i == 'A':
			a = min(a, i)
		if i == 'Z':
			z = max(z, i)
	print(z - a + 1)
resolve()

Fixed submission:
def resolve():
	s = list(input())
	b = -1
	e = -1
	for i in range(len(s)):
		if s[i] == 'A' and b < 0:
			b = i
		if s[i] == 'Z':
			e = i
	if b == -1 or e == -1:
		print(0)
	else:
		print(e-b+1)
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	s = input()
	if re.search("^(dream|dreamer|erase|eraser)+$", s):
		print("YES")
	else:
		print("NO")
resolve()

Fixed submission:
def resolve():
	s = input()
	w = ['dream', 'dreamer', 'erase', 'eraser']
	h = dict()
	for i in range(len(w)):
		h[w[i][::-1]] = True
	s = s[::-1]
	c = ''
	for i in s:
		c += i
		if h.get(c):
			c = ''
	if not len(c):
		print('YES')
	else:
		print('NO')
resolve()

Buggy python submission (verdict: Time Limit Exceeded):
def resolve():
	s = input()
	w = ['dream', 'dreamer', 'erase', 'eraser']
	h = dict()
	for i in range(len(w)):
		h[w[i][::-1]] = True
	s = s[::-1]
	c = ''
	for i in s:
		c += i
		if h.get(c):
			c = ''
	if not len(c):
		print('YES')
	else:
		print('NO')
resolve()

Fixed submission:
def resolve():
	s = input()
	w = ['dream', 'dreamer', 'erase', 'eraser']
	h = dict()
	for i in range(len(w)):
		h[w[i][::-1]] = True
	s = s[::-1]
	c = ''
	for i in s:
		c += i
		if h.get(c):
			c = ''
	if not len(c):
		print('YES')
	else:
		print('NO')
resolve()

Buggy python submission (verdict: Time Limit Exceeded):
def resolve():
	s = input()
	w = ['dream', 'dreamer', 'erase', 'eraser']
	for i in range(len(w)):
		w[i] = w[i][::-1]
	s = s[::-1]
	c = ''
	for i in s:
		c += i
		if c in w:
			c = ''
	if not len(c):
		print('YES')
	else:
		print('NO')
resolve()

Fixed submission:
def resolve():
	s = input()
	w = ['dream', 'dreamer', 'erase', 'eraser']
	h = dict()
	for i in range(len(w)):
		h[w[i][::-1]] = True
	s = s[::-1]
	c = ''
	for i in s:
		c += i
		if h.get(c):
			c = ''
	if not len(c):
		print('YES')
	else:
		print('NO')
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	w, h, n = map(int, input().split())
	r = [[True]*w for _ in range(h)]
	for _ in range(n):
		ix, iy, a = map(int, input().split())
		if a == 1:
			for row in r:
				row[:ix] = [False]*ix
		elif a == 2:
			for row in r:
				row[ix:] = [False]*ix if ix > 0 else [False]*w
		elif a == 3:
			for i in range(iy):
				for j in range(w):
					r[i][j] = False
		else:
			for i in range(iy, h):
				for j in range(w):
					r[i][j] = False
	ans = 0

	for row in r:
		for i in row:
			if i:
				ans += 1
	print(ans)
resolve()

Fixed submission:
def resolve():
	w, h, n = map(int, input().split())
	r = [[True]*w for _ in range(h)]
	for _ in range(n):
		ix, iy, a = map(int, input().split())
		if a == 1:
			for i in range(h):
				for j in range(ix):
					r[i][j] = False
		elif a == 2:
			for i in range(h):
				for j in range(ix, w):
					r[i][j] = False
		elif a == 3:
			for i in range(iy):
				for j in range(w):
					r[i][j] = False
		else:
			for i in range(iy, h):
				for j in range(w):
					r[i][j] = False
	ans = 0

	for row in r:
		for i in row:
			if i:
				ans += 1
	print(ans)
resolve()

Buggy python submission (verdict: Runtime Error):
def resolve():
	w, h, n = map(int, input().split())
	r = [[True]*w for _ in range(h)]
	for _ in range(n):
		ix, iy, a = map(int, input().split())
		if a == 1:
			for row in r:
				row[:ix] = [False]*ix
		elif a == 2:
			for row in r:
				row[ix:] = [False]*ix
		elif a == 3:
			for i in range(iy):
				for j in range(w):
					r[i][j] = False
		else:
			for i in range(iy, h):
				for j in range(w):
					r[i][j] = False
	ans = 0

	for row in r:
		for i in row:
			if i:
				ans += 1
	print(ans)
resolve()

Fixed submission:
def resolve():
	w, h, n = map(int, input().split())
	r = [[True]*w for _ in range(h)]
	for _ in range(n):
		ix, iy, a = map(int, input().split())
		if a == 1:
			for i in range(h):
				for j in range(ix):
					r[i][j] = False
		elif a == 2:
			for i in range(h):
				for j in range(ix, w):
					r[i][j] = False
		elif a == 3:
			for i in range(iy):
				for j in range(w):
					r[i][j] = False
		else:
			for i in range(iy, h):
				for j in range(w):
					r[i][j] = False
	ans = 0

	for row in r:
		for i in row:
			if i:
				ans += 1
	print(ans)
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	n, k = map(int, input().split())
	if n == 1:
		print(k)
	else:
		print(k*((k-1)**(n-1)))
resolve()

Fixed submission:
def resolve():
	s = input().split()
	uni = []
	for i in s:
		if i not in uni:
			uni.append(i)
	print(len(uni))
resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	n = int(input())
	v = []
	for _ in range(n):
		v.append(list(map(int, input().split())))
	t, a = 1, 1
	for i in range(n):
		tv, av = v[i]
		c = max(math.ceil(t/tv), math.ceil(a/av))
		t, a = c*tv, c*av
	print(t+a)
resolve()

Fixed submission:

def resolve():
	n = int(input())
	v = []
	for _ in range(n):
		v.append(list(map(int, input().split())))
	t, a = 1, 1
	for i in range(n):
		tv, av = v[i]
		c = max(t//tv + (t%tv!=0), a//av + (a%av!=0))
		t, a = c*tv, c*av
	print(t+a)
resolve()

Buggy python submission (verdict: Runtime Error):
def resolve():
	n = int(input())
	v = []
	for _ in range(n):
		v.append(list(map(int, input().split())))
	t, a = v[0][0], v[0][1]
	for i in range(1, n):
		tv, av = v[i]
		c = max(math.ceil(t/tv), math.ceil(a/av))
		t, a = c*tv, c*av
	print(t+a)
resolve()

Fixed submission:

def resolve():
	n = int(input())
	v = []
	for _ in range(n):
		v.append(list(map(int, input().split())))
	t, a = 1, 1
	for i in range(n):
		tv, av = v[i]
		c = max(t//tv + (t%tv!=0), a//av + (a%av!=0))
		t, a = c*tv, c*av
	print(t+a)
resolve()
Buggy python submission (verdict: Runtime Error):
import math

def resolve():
	_ = int(input())
	a = list(map(int, input().split()))
	ans = math.inf
	for i in range(-100, 101):
		s = 0
		for j in a:
			s += (i-j)**2
		if ans > s:
			ans = s
	print(ans)
resolve()


Fixed submission:
def resolve():
	n = int(input())
	ans = 1000000
	a = list(map(int, input().split()))
	for i in range(-100, 101):
		tmp = 0

		for j in a:
			tmp += (j-i)**2
		if tmp < ans:
			ans = tmp
	print(ans)

resolve()
Buggy python submission (verdict: Runtime Error):
def resolve():
	n, m = map(int, input().split())
	w = list()
	ans = ""
	for _ in range(m):
		w.append(input())
	w.sort()
	for word in w:
		ans += word
	print(ans)

resolve()

Fixed submission:
def resolve():
	n, m = map(int, input().split())
	w = list()
	ans = ""
	for _ in range(n):
		w.append(input())
	w.sort()
	for word in w:
		ans += word
	print(ans)

resolve()

Buggy python submission (verdict: Runtime Error):
def resolve():
	n, m = map(int, input().split())
	w = list()
	ans = ""
	for _ in range(m):
		w.append("".join(sorted(input())))
	w.sort()
	for word in w:
		ans += word
	print(ans)

resolve()

Fixed submission:
def resolve():
	n, m = map(int, input().split())
	w = list()
	ans = ""
	for _ in range(n):
		w.append(input())
	w.sort()
	for word in w:
		ans += word
	print(ans)

resolve()

Buggy python submission (verdict: Runtime Error):
def resolve():
	n, m = map(int, input().split())
	w = list()
	for _ in range(m):
		w.append(input())
	w.sort()
	print("".join(w))

resolve()

Fixed submission:
def resolve():
	n, m = map(int, input().split())
	w = list()
	ans = ""
	for _ in range(n):
		w.append(input())
	w.sort()
	for word in w:
		ans += word
	print(ans)

resolve()

Buggy python submission (verdict: Runtime Error):
def resolve():
	n, m = map(int, input().split())
	w = list()
	for _ in range(m):
		w.append(input())
	w.sort()
	print("".join(w))
resolve()

Fixed submission:
def resolve():
	n, m = map(int, input().split())
	w = list()
	ans = ""
	for _ in range(n):
		w.append(input())
	w.sort()
	for word in w:
		ans += word
	print(ans)

resolve()
Buggy python submission (verdict: Time Limit Exceeded):
import itertools
n = int(input())
a = list(map(int, input().split()))
ans = 0
p = 10 ** 9+7
for j in itertools.combinations(a,2):
    ans += (j[0]* j[1])
    ans = ans%p
print(ans)

Fixed submission:
import itertools
n = int(input())
a = list(map(int, input().split()))
suma = sum(a)-a[0]
ans = 0
p = 10 ** 9+7
for i in range(len(a)-1):
    ans += a[i]*suma
    suma -= a[i+1]
    ans = ans%p
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import itertools
n = int(input())
a = list(map(int, input().split()))
ans = 0
p = 10 ** 9+7
for j in itertools.combinations(a,2):
    ans += (j[0]* j[1])%p
print(ans %p)

Fixed submission:
import itertools
n = int(input())
a = list(map(int, input().split()))
suma = sum(a)-a[0]
ans = 0
p = 10 ** 9+7
for i in range(len(a)-1):
    ans += a[i]*suma
    suma -= a[i+1]
    ans = ans%p
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import itertools
n = int(input())
a = list(map(int, input().split()))
amaria = []
ans = 0
p = 10 ** 9+7
#for i in itertools.combinations(a,2):
    #ans += i[0]* i[1]
    #print(ans)
for i in range(n):
    amaria.append(a[i]%p)
for j in itertools.combinations(amaria,2):
    ans += j[0]* j[1]
print(ans % p)

Fixed submission:
import itertools
n = int(input())
a = list(map(int, input().split()))
suma = sum(a)-a[0]
ans = 0
p = 10 ** 9+7
for i in range(len(a)-1):
    ans += a[i]*suma
    suma -= a[i+1]
    ans = ans%p
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
import collections
n = int(input())
l = list(map(int, input().split()))
a = int(input())
c = collections.Counter(l)
for i in range(a):
    j,k =  map(int, input().split())
    save = c[j]
    del c[j]
    c[k] += save
    answer = 0
    for q,r in c.items():
        answer += int(q)*int(r)
    print(answer)


Fixed submission:
import collections
n = int(input())
l = list(map(int, input().split()))
a = int(input())
c = collections.Counter(l)
answer = sum(l)
for i in range(a):
    j,k =  map(int, input().split())
    save = c[j]
    del c[j]
    c[k] += save
    answer = answer + k*save - j*save
    print(answer)
Buggy python submission (verdict: Runtime Error):
a = input()
t =list(a)
if t[0] == "?":
    if t[1] == "P":
        t[0] = "D"
    else:
        t[0] = "P"
if t[len(t)-1] == "?":
    t[len(t)-1] = "D"
for i in reversed(range(1,len(t)-1)):
    if t[i] == "?" and t[i+1] == "D":
        t[i] = "P"
    elif t[i] == "?":
        t[i] = "D"
answer = "".join(t)
print(answer)

Fixed submission:
a = input()
t = list(a)
if t[len(t)-1] == "?":
    t[len(t)-1] = "D"
if t[0] == "?":
    if t[1] == "D" or t[1] == "?":
        t[0] = "P"
    else:
        t[0] = "D"
for i in range(1, len(t)-1):
    if t[i] == "?" and t[i-1] == "P":
        t[i] = "D"
    elif t[i] == "?" and t[i+1] == "D":
        t[i] = "P"
    elif t[i] == "?" and t[i+1] == "?":
        t[i] = "P"
    elif t[i] == "?":
        t[i] = "D"

answer = "".join(t)
print(answer)
Buggy python submission (verdict: Runtime Error):
a,b = map(int, input().split())
m = int(input())
table = [[int(i) for i in input().split()] for m in range(m)]
print(a-m)

Fixed submission:
from collections import Counter

n,k = map(int, input().split())
l=[]
for i in range (k):
    d = int(input())
    a = input().split()
    lena = int(len(a))
    for j in range(lena):
        l.append(a[j])

c = Counter(l)
print(n-len(c))
Buggy python submission (verdict: Time Limit Exceeded):
n=int(input())
a=list(map(int, input().split()))
nagasa=len(a)
count=0
for i in range(1,n+1):
    for j in range (nagasa):
        if a[j] == i:
            count += 1
    else:
        print(count)
        count = 0

Fixed submission:
import collections
n=int(input())
a=list(map(int, input().split()))
ct=collections.Counter(a)
for i in range(n):
    print(ct[i+1])

Buggy python submission (verdict: Time Limit Exceeded):
n=int(input())
a=list(map(int, input().split()))
count=0
for i in range(1,n+1):
    for j in range (len(a)):
        if a[j] == i:
            count += 1
    else:
        print(count)
        count = 0

Fixed submission:
import collections
n=int(input())
a=list(map(int, input().split()))
ct=collections.Counter(a)
for i in range(n):
    print(ct[i+1])

Buggy python submission (verdict: Time Limit Exceeded):
import math
n=int(input())
a=list(map(int, input().split()))
count=0
for i in range(1,n+1):
    for j in range (len(a)):
        if a[j] == i:
            count += 1
    else:
        print(count)
        count = 0

Fixed submission:
import collections
n=int(input())
a=list(map(int, input().split()))
ct=collections.Counter(a)
for i in range(n):
    print(ct[i+1])
Buggy python submission (verdict: Time Limit Exceeded):
import math
from functools import reduce

n = int(input())
answer = 0

def gcd(*numbers):
    return reduce(math.gcd,numbers)

for i in range(n):
    for j in range(n):
        for k in range(n):
            answer += gcd(i+1,j+1,k+1)
print(answer)

Fixed submission:
import math
from functools import reduce
 
n = int(input())
answer = 0
 
def gcd(*numbers):
    return reduce(math.gcd,numbers)
 
for i in range(n):
    for j in range(n):
        for k in range(n):
            answer += gcd(i+1,j+1,k+1)
print(answer)