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

def main():

    N, K = map(int, input().split())
    a = list(map(int, input().split()))
    dp = [[0]*(K+1) for i in range(N+1)]
    import collections
    dp[0][K] = 1
    mod = 10**9 + 7
    # dp[i][j] i人目まで配って、残りがj個の方法の数
    s = [0]*(K+2)
    for i in range(1, N+1):
        tmp = 0
        for j in range(K, -1, -1):
            s[j] = (s[j+1] + dp[i-1][j]) % mod
        for j in range(K, -1, -1):
            tmp = s[j] - s[min(K, j+a[i-1]) + 1]
            tmp %= mod
            dp[i][j] = tmp

    print(dp[-1][0])


main()


### FIXED CODE ###

def main():

    N, K = map(int, input().split())
    a = list(map(int, input().split()))
    dp = [[0]*(K+1) for i in range(N+1)]
    import collections
    dp[0][K] = 1
    mod = 10**9 + 7
    # dp[i][j] i人目まで配って、残りがj個の方法の数
    for i in range(1, N+1):
        tmp = 0
        q = collections.deque()
        for j in range(K, -1, -1):
            while(q):
                if q[0][0] > j:
                    t = q.popleft()
                    tmp -= t[1]
                else:
                    break
            if dp[i-1][j]:
                tmp += dp[i-1][j]
                q.append((max(j - a[i-1], 0), dp[i-1][j]))
            tmp %= mod
            dp[i][j] = tmp

    print(dp[-1][0])


main()
### BUGGY CODE ###

c=0
n=int(input())
s=input().split()
q=int(input())
t=input().split()
s.sort()
l=list(set(s))
for i in t:
	for j in l:
		if int(i)==int(j):
			c +=1
			break
print(c)


### FIXED CODE ###

c=0
n=int(input())
s=input().split()
q=int(input())
t=input().split()
s.sort()

print(len(set(s)&set(t)))
### BUGGY CODE ###

def resolve():
    (H, W) = list(map(int, input().split(" ")))
    S = [list(input()) for i in range(H)]
    L = [[0 for _ in range(W)] for _ in range(H)]
    R = [[0 for _ in range(W)] for _ in range(H)]
    U = [[0 for _ in range(W)] for _ in range(H)]
    D = [[0 for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if S[i][j] == "#":
                continue
            L[i][j] = L[i][j-1]+1 if j > 0 else 1
    for i in range(H-1, -1, -1):
        for j in range(W-1, -1 ,-1):
            if S[i][j] == "#":
                continue
            R[i][j] = R[i][j+1]+1 if j < W-1 else 1
    for i in range(H-1, -1, -1):
        for j in range(W):
            if S[i][j] == "#":
                continue
            D[i][j] = D[i+1][j]+1 if i < H-1 else 1
    for i in range(H):
        for j in range(W-1, -1 ,-1):
            if S[i][j] == "#":
                continue
            U[i][j] = U[i-1][j]+1 if i > 0 else 1
    ans = 0
    for i in range(H):
        for j in range(W):
            ans = max(ans, L[i][j]+R[i][j]+U[i][j]+D[i][j]-3)

    print(ans)

if '__main__' == __name__:
    resolve()

### FIXED CODE ###

def resolve():
    (H, W) = list(map(int, input().split(" ")))
    S = [list(input()) for i in range(H)]
    L = [[0 for _ in range(W)] for _ in range(H)]
    R = [[0 for _ in range(W)] for _ in range(H)]
    U = [[0 for _ in range(W)] for _ in range(H)]
    D = [[0 for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if S[i][j] == "#":
                continue
            L[i][j] = L[i][j-1]+1 if j > 0 else 1
    for i in range(H-1, -1, -1):
        for j in range(W-1, -1 ,-1):
            if S[i][j] == "#":
                continue
            R[i][j] = R[i][j+1]+1 if j < W-1 else 1
    for i in range(H-1, -1, -1):
        for j in range(W):
            if S[i][j] == "#":
                continue
            D[i][j] = D[i+1][j]+1 if i < H-1 else 1
    for i in range(H):
        for j in range(W-1, -1 ,-1):
            if S[i][j] == "#":
                continue
            U[i][j] = U[i-1][j]+1 if i > 0 else 1
    ans = 0
    for i in range(H):
        for j in range(W):
            ans = max(ans, L[i][j]+R[i][j]+U[i][j]+D[i][j]-3)

    print(ans)

if '__main__' == __name__:
    resolve()
### BUGGY CODE ###

import sys

# import bisect
# import numpy as np
# from collections import deque
from collections import deque
# map(int, sys.stdin.read().split())
# import heapq
import bisect


# def input():
#     return sys.stdin.readline().rstrip()


def main():
    N, K = map(int, input().split())
    A = sorted(list(map(int, input().split())))
    mod = 10 ** 9 + 7

    #    print(A)
    #    print(A_plus)
    #    print(A_minus)
    if N == K:
        ans = 1
        for i in A:
            ans *= i % mod
        print(ans % mod)

    elif A[-1] < 0:
        ans = 1
        for i in range(K):
            ans *= A[-(i + 1)] % mod
        print(ans % mod)

    elif K % 2 == 0:
        ans = 1
        j = 0
        i = N - 1
        for _ in range(K // 2):
            if A[j] * A[j + 1] > A[i] * A[i - 1]:
                ans *= A[j] * A[j + 1]
                ans %= mod
                j += 2
            else:
                ans *= A[i] * A[i - 1]
                ans %= mod
                i -= 2
        print(ans % mod)

    else:
        ans = A[-1]
        j = 0
        i = N - 2
        for _ in range(K // 2):
            if A[j] * A[j + 1] > A[i] * A[i - 1]:
                ans *= A[j] * A[j + 1]
                ans %= mod
                j += 2
            else:
                ans *= A[i] * A[i - 1]
                ans %= mod
                i -= 2
        print(ans % mod)


if __name__ == "__main__":
    main()


### FIXED CODE ###

import sys

# import bisect
# import numpy as np
# from collections import deque
from collections import deque
# map(int, sys.stdin.read().split())
# import heapq
import bisect


# def input():
#     return sys.stdin.readline().rstrip()


def main():
    N, K = map(int, input().split())
    A = sorted(list(map(int, input().split())))
    mod = 10 ** 9 + 7

    if N == K:
        ans = 1
        for i in range(N):
            ans *= A[i]
            ans %= mod
        print(ans % mod)



    elif K % 2 == 0:
        ans = 1
        j = 0
        i = N - 1
        for _ in range(K // 2):
            if A[j] * A[j + 1] > A[i] * A[i - 1]:
                ans *= A[j] * A[j + 1]
                ans %= mod
                j += 2
            else:
                ans *= A[i] * A[i - 1]
                ans %= mod
                i -= 2
        print(ans % mod)

    elif A[-1] < 0:
        ans = 1
        for i in range(K):
            ans *= A[-(i + 1)]
            ans %= mod
        print(ans % mod)
    else:
        ans = A[-1]
        j = 0
        i = N - 2
        for _ in range(K // 2):
            if A[j] * A[j + 1] > A[i] * A[i - 1]:
                ans *= A[j] * A[j + 1]
                ans %= mod
                j += 2
            else:
                ans *= A[i] * A[i - 1]
                ans %= mod
                i -= 2
        print(ans % mod)


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

import sys
from heapq import heappush, heappop

read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines
sys.setrecursionlimit(10 ** 9)
INF = 1 << 60
MOD = 1000000007


class BIT:
    def __init__(self, n):
        self.n = n
        self.data = [0] * (n + 1)
        self.depth = pow(2, n.bit_length())

    def add(self, i, x=1):
        i += 1
        while i <= self.n:
            self.data[i] += x
            i += i & -i

    def get_sum(self, i):
        i += 1
        x = 0
        while i > 0:
            x += self.data[i]
            i -= i & -i
        return x

    # Return sum for [l, r)
    def get_sum_range(self, l, r):
        return self.get_sum(r - 1) - self.get_sum(l - 1)

    # Return the minimum i that satisfies a_0 + a_1 + ... + a_i >= x
    def lower_bound(self, x):
        if x <= 0:
            return 0
        i = 0
        k = pow(2, self.depth)
        while k:
            if i + k < self.n and self.data[i + k] < x:
                x -= self.data[i + k]
                i += k
            k >>= 1
        return i


def main():
    N, *P = map(int, read().split())

    index = [0] * (N + 1)
    for i, p in enumerate(P):
        index[p] = i

    bit = BIT(N)
    for i in range(N):
        bit.add(i)

    ans = 0
    for n in range(1, N + 1):
        i = index[n]
        x = bit.get_sum(i)

        left1 = left2 = -1
        right1 = right2 = N
        if x - 2 > 0:
            left2 = bit.lower_bound(x - 2)
        if x - 1 > 0:
            left1 = bit.lower_bound(x - 1)
        if x + 1 <= N - n + 1:
            right1 = bit.lower_bound(x + 1)
        if x + 2 <= N - n + 1:
            right2 = bit.lower_bound(x + 2)

        ans += ((left1 - left2) * (right1 - i) + (right2 - right1) * (i - left1)) * n

        bit.add(i, -1)

    print(ans)
    return


if __name__ == '__main__':
    main()


### FIXED CODE ###

import sys
from heapq import heappush, heappop

read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines
sys.setrecursionlimit(10 ** 9)
INF = 1 << 60
MOD = 1000000007


def main():
    N, *P = map(int, read().split())

    idx = [0] * (N + 1)
    for i, p in enumerate(P):
        idx[p] = i

    left = list(range(-1, N)) + [-1]
    right = list(range(1, N + 1)) + [N, N]

    ans = 0
    for n in range(1, N + 1):
        i = idx[n]
        l1 = left[i]
        l2 = left[l1]
        r1 = right[i]
        r2 = right[r1]

        ans += n * ((l1 - l2) * (r1 - i) + (r2 - r1) * (i - l1))

        left[r1] = l1
        right[l1] = r1

    print(ans)
    return


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

from math import factorial

MOD = 10**9+7

n, m, k = list(map(int, input().split()))
# 　ある配置を固定した時、その2つの配置でmanhattan距離が計算される回数は、他の組み合わせ数。
combination = factorial(n*m-2)//factorial(k-2)//factorial((n*m-2)-(k-2))
# n=5なら1,2,3,4それぞれにm**2をかける。
print(((sum([m**2*i*(n-i) for i in range(1, n)]) + sum([n**2*i*(m-i) for i in range(1, m)])) * combination)%MOD)
# あるマンハッタン距離の時の配置の数

### FIXED CODE ###

from collections import defaultdict, deque, Counter
from heapq import heappush, heappop, heapify
import math
import bisect
import random
from itertools import permutations, accumulate, combinations
import sys
import string
from bisect import bisect_left, bisect_right
from math import factorial, ceil, floor
from functools import reduce



INF = float('inf')
def LI(): return list(map(int, sys.stdin.readline().split()))
def I(): return int(sys.stdin.readline())
def LS(): return sys.stdin.readline().split()
def S(): return sys.stdin.readline().strip()
def IR(n): return [I() for i in range(n)]
def LIR(n): return [LI() for i in range(n)]
def SR(n): return [S() for i in range(n)]
def LSR(n): return [LS() for i in range(n)]
def SRL(n): return [list(S()) for i in range(n)]
def MSRL(n): return [[int(j) for j in list(S())] for i in range(n)]
mod = 1000000007


def mod_combination(n, r, mod=10 ** 9 + 7):
    fact = 1
    for i in range(n - r + 1, n + 1):
        fact = fact * i % mod

    divisor = 1
    for j in range(1, r + 1):
        divisor = divisor * j % mod

    return fact * pow(divisor, mod - 2, mod) % mod


def main():
    mod = 10**9+7
    n, m, k = LI()
    # 　ある配置を固定した時、その2つの配置でmanhattan距離が計算される回数は、他の組み合わせ数。
    combination = mod_combination(n*m-2, k-2)
    x=y=0
    for i in range(1, n):
        x += i * (n-i)
    for j in range(1, m):
        y += j * (m-j)
    return (((m ** 2) % mod * x % mod) + ((n ** 2) % mod * y % mod)) * combination % mod


print(main())
### BUGGY CODE ###

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

P=1000000007

z=0
for i in range(0,N-1):
    for j in range(i+1,N):
        p=A[i]*A[j]
#        print(i,j,p)
        z+=p

z%=P
print(z)


### FIXED CODE ###

N=int(input())
A=list(map(int,input().split()))
s=sum(A)
ss=s
z=0
for i in range(0,N-1):
    ss-=A[i]
    z+=A[i]*ss

print(z%1000000007)
### BUGGY CODE ###

n,k=(int(i) for i in input().split())
h=[0 for i in range(k)]
p=0
for i in input().split():
  p+=int(i)
  try:
      if h[0]<int(i):
        h[0]=int(i)
        h.sort()
  except IndexError:
    continue
print(p-sum(h))

### FIXED CODE ###

n,k=(int(i) for i in input().split())
h=[]
for i in input().split():
  h.append(int(i))
h.sort()
if k!=0:
	for i in range(min(n,k)):
 	  h.pop(-1)
print(sum(h))
### BUGGY CODE ###

R,C,K = map(int,input().split())
goods = [[-1]*(C+1) for _ in range(R+1)]
INF = 10**18
for i in range(K):
    ri,ci,vi = map(int,input().split())
    goods[ri][ci] = vi
DP = [[[-INF,-INF,-INF,-INF] for _ in range(C+1)] for _ in range(R+1)]
DP[1][1][0] = 0
if goods[1][1] != -1:
    DP[1][1][1] = goods[1][1]
for j in range(1,C):
    DP[1][j+1][0] = 0
    if goods[1][j+1] != -1:
        DP[1][j+1][1] = max(DP[1][j][1],DP[1][j][0]+goods[1][j+1])
        DP[1][j+1][2] = max(DP[1][j][2],DP[1][j][1]+goods[1][j+1])
        DP[1][j+1][3] = max(DP[1][j][3],DP[1][j][2]+goods[1][j+1])
    else:
        DP[1][j+1][1] = DP[1][j][1]
        DP[1][j+1][2] = DP[1][j][2]
        DP[1][j+1][3] = DP[1][j][3]
for i in range(1,R):
    DP[i+1][1][0] = max(DP[i][1])
    if goods[i+1][1] != -1:
        DP[i+1][1][1] = DP[i+1][1][0] + goods[i+1][1]
for i in range(2,R+1):
    for j in range(2,C+1):
        DP[i][j][0] = max(max(DP[i-1][j]),DP[i][j-1][0])
        if goods[i][j] != -1:
            DP[i][j][1] = max(DP[i][j][0]+goods[i][j],DP[i][j-1][1])
            DP[i][j][2] = max(DP[i][j-1][2],DP[i][j-1][1]+goods[i][j])
            DP[i][j][3] = max(DP[i][j-1][3],DP[i][j-1][2]+goods[i][j])
        else:
            DP[i][j][1] = DP[i][j-1][1]
            DP[i][j][2] = DP[i][j-1][2]
            DP[i][j][3] = DP[i][j-1][3]
print(max(DP[R][C]))

### FIXED CODE ###

import sys
input = sys.stdin.buffer.readline
R,C,K = map(int,input().split())
goods = [[0]*(C+1) for _ in range(R+1)]
INF = 10**18
for i in range(K):
    ri,ci,vi = map(int,input().split())
    goods[ri][ci] = vi
DP = [[[-INF]*(C+1) for _ in range(R+1)] for _ in range(4)]
DP[0][1][1] = 0
if goods[1][1]:
    DP[1][1][1] = goods[1][1]
for j in range(1,C):
    DP[0][1][j+1] = 0
    if goods[1][j+1]:
        DP[1][1][j+1] = max(DP[1][1][j],DP[0][1][j]+goods[1][j+1])
        DP[2][1][j+1] = max(DP[2][1][j],DP[1][1][j]+goods[1][j+1])
        DP[3][1][j+1] = max(DP[3][1][j],DP[2][1][j]+goods[1][j+1])
    else:
        DP[1][1][j+1] = DP[1][1][j]
        DP[2][1][j+1] = DP[2][1][j]
        DP[3][1][j+1] = DP[3][1][j]
for i in range(1,R):
    DP[0][i+1][1] = max(DP[0][i][1],DP[1][i][1],DP[2][i][1],DP[3][i][1])
    if goods[i+1][1]:
        DP[1][i+1][1] = DP[0][i+1][1] + goods[i+1][1]
for i in range(2,R+1):
    for j in range(2,C+1):
        DP[0][i][j] = max(DP[0][i-1][j],DP[1][i-1][j],DP[2][i-1][j],DP[3][i-1][j],DP[0][i][j-1])
        if goods[i][j]:
            DP[1][i][j] = max(DP[0][i][j]+goods[i][j],DP[1][i][j-1])
            DP[2][i][j] = max(DP[2][i][j-1],DP[1][i][j-1]+goods[i][j])
            DP[3][i][j] = max(DP[3][i][j-1],DP[2][i][j-1]+goods[i][j])
        else:
            DP[1][i][j] = DP[1][i][j-1]
            DP[2][i][j] = DP[2][i][j-1]
            DP[3][i][j] = DP[3][i][j-1]
print(max(DP[0][R][C],DP[1][R][C],DP[2][R][C],DP[3][R][C]))
### BUGGY CODE ###

import sys

count = 0

inarr = set()

for line in sys.stdin:
    inarr.add(int(line))

for n in inarr:
    if n == 2:
        count += 1
        continue

    jdg = True
    for i in range(2, n):
        if n % i == 0:
            jdg = False
            break
    if jdg:
        count += 1

print(count)



### FIXED CODE ###

import sys

count = 0

number = int(input())

for line in sys.stdin:
    n = int(line)
    if n == 2:
        count += 1
        continue

    if n % 2 == 0:
        continue

    jdg = True
    for i in range(3, int(n ** 0.5) + 1, 2):
        if n % i == 0:
            jdg = False
            break
    if jdg:
        count += 1

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

import sys
def input():
    return sys.stdin.readline()[:-1]

from collections import Counter
def main():
    S = input()
    l = len(S)
    amari =[int(S[-(i + 1) :]) % 2019 for i in range(l)]
    C = Counter(amari)
    ans = 0
    for v in C.values():
        ans += v * (v - 1) // 2
    print(ans + amari.count(0))


if __name__ == "__main__":
    main()

### FIXED CODE ###

import sys
def input():
    return sys.stdin.readline()[:-1]


def main():
    S = input()[::-1] # 入力文字列を逆順で格納
    counts = [0] * 2019
    counts[0] = 1
    num, d = 0, 1

    for char in S:
        num = num + int(char) * d
        num = num % 2019
        d = d * 10
        d = d % 2019
        counts[num] += 1 #余りの数の番号のリストに+1していくことでカウント

    ans = 0
    for cnt in counts:
        ans += cnt * (cnt - 1) // 2
    print(ans)

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

#ABC169-B
n=int(input())
c=list(map(int, input().split()))
ans=1
for i in range(n):
  ans*=c[i]
if ans>10**18:
  print(-1)
else:
  print(ans)

### FIXED CODE ###

#ABC169-B
n=int(input())
c=list(map(int, input().split()))
ans=1
if 0 in c:
  print(0)
else:
  for i in range(n):
    ans*=c[i]
    if ans>10**18:
      ans=-1
      break
  print(ans)
### BUGGY CODE ###

S = input()
queryNum = input()
for i in range(int(queryNum)):
	order = input()
	if order == '1':
		S = S[::-1]
	else:
		if order[2] == '1':
			S = order[4] + S
		else:
			S = S + order[4]
print(S)

### FIXED CODE ###

from collections import deque

S = deque(input())
queryNum = input()
flip = False
for i in range(int(queryNum)):
	order = input()
	if order == '1':
		if flip:
			flip = False
		else:
			flip = True
	else:
		if order[2] == '1':
			if not flip:
				S.appendleft(order[4])
			elif flip:
				S.append(order[4])
		else:
			if not flip:
				S.append(order[4])
			elif flip:
				S.appendleft(order[4])
S = ''.join(S)
if flip:
	print(S[::-1])
else: 
	print(S)
### BUGGY CODE ###

from collections import deque
h,w=map(int,input().split())
ch,cw=map(int,input().split())
dh,dw=map(int,input().split())

maze = [list(input()) for i in range(h)]
ans = [[-1]*w for i in range(h)]
ans[ch-1][cw-1]=0
count=0

def bfs(ans):
  qu = deque([])
  qu.append((cw-1,ch-1))
  while qu:
    x,y=qu.popleft()

    for i in range(x-2,x+3):
      for j in range(y-2,y+3):
        if (x==i and y==j):
          continue
        if 0<=i<w and 0<=j<h:
          if maze[j][i]=="." and (ans[j][i]>ans[y][x] or ans[j][i]==-1):
            if (x==i and y==j+1) or (x==i+1 and y==j) or (x==i-1 and y==j) or (x==i and y==j-1):
              qu.appendleft((i,j))
              ans[j][i] = ans[y][x]
            elif ans[j][i]>=ans[y][x]+1 or ans[j][i]==-1:
              ans[j][i]=(ans[y][x]+1)
              qu.appendleft((i,j))

bfs(ans)
print(ans[dh-1][dw-1])
#for i in ans:
#  print(*i)
  



### FIXED CODE ###

from collections import deque
h,w=map(int,input().split())
ch,cw=map(int,input().split())
dh,dw=map(int,input().split())

maze = [list(input()) for i in range(h)]
ans = [[-1]*w for i in range(h)]

dx=[0,1,0,-1]
dy=[1,0,-1,0]

ans[ch-1][cw-1]=0
def bfs(ans):
  qu = deque([])
  qu.append([cw-1,ch-1])
  while qu:
    zahyou=qu.popleft()
    x=zahyou[0]
    y=zahyou[1]
    count=0
    for i in range(4):
      if 0 <= x+dx[i] < w and 0 <= y+dy[i] < h:
        if maze[y+dy[i]][x+dx[i]]=="." and (ans[y+dy[i]][x+dx[i]]>ans[y][x] or ans[y+dy[i]][x+dx[i]]==-1):
          qu.appendleft([x+dx[i],y+dy[i]])
          ans[y+dy[i]][x+dx[i]] = ans[y][x]
          count+=1
    if count!=4:
      for i in range(x-2,x+3):
        for j in range(y-2,y+3):
          if 0<=i<w and 0<=j<h:
            if maze[j][i]=="." and (ans[j][i]>ans[y][x]+1 or ans[j][i]==-1):
              ans[j][i]=(ans[y][x]+1)
              qu.append([i,j])

bfs(ans)
print(ans[dh-1][dw-1])
### BUGGY CODE ###

import sys
def input():
	return sys.stdin.readline()[:-1]

n, m, q = map(int, input().split())
s = ["0"*(m+1)] + ["0" + input() for _ in range(n)]

block = [[0 for _ in range(m+1)] for _ in range(n+1)]
for i in range(1, n+1):
	for j in range(1, m+1):
		block[i][j] = block[i][j-1] + block[i-1][j] - block[i-1][j-1] + int(s[i][j])

def block_num(x1, y1, x2, y2):
	return block[x2][y2] - block[x1-1][y2] - block[x2][y1-1] + block[x1-1][y1-1]

edge_h = [[0 for _ in range(m)] for _ in range(n+1)]
edge_v = [[0 for _ in range(m+1)] for _ in range(n)]

for i in range(1, n+1):
	for j in range(1, m):
		edge_h[i][j] = edge_h[i][j-1] + edge_h[i-1][j] - edge_h[i-1][j-1] + (int(s[i][j]) + int(s[i][j+1]) == 2)

for i in range(1, n):
	for j in range(1, m+1):
		edge_v[i][j] = edge_v[i][j-1] + edge_v[i-1][j] - edge_v[i-1][j-1] + (int(s[i][j]) + int(s[i+1][j]) == 2)

def edge_num(x1, y1, x2, y2):
	h = edge_h[x2][y2-1] - edge_h[x1-1][y2-1] - edge_h[x2][y1-1] + edge_h[x1-1][y1-1]
	v = edge_v[x2-1][y2] - edge_v[x1-1][y2] - edge_v[x2-1][y1-1] + edge_v[x1-1][y1-1]
	return h+v

for _ in range(q):
	x1, y1, x2, y2 = map(int, input().split())
	b = block_num(x1, y1, x2, y2)
	e = edge_num(x1, y1, x2, y2)
	print(b-e)

### FIXED CODE ###

import sys
def input():
	return sys.stdin.readline()[:-1]

n, m, q = map(int, input().split())
s = ["0"*(m+1)] + ["0" + input() for _ in range(n)]

block = [[0 for _ in range(m+1)] for _ in range(n+1)]
for i in range(1, n+1):
	for j in range(1, m+1):
		block[i][j] = block[i][j-1] + block[i-1][j] - block[i-1][j-1] + int(s[i][j])

def block_num(x1, y1, x2, y2):
	return block[x2][y2] - block[x1-1][y2] - block[x2][y1-1] + block[x1-1][y1-1]

edge_h = [[0 for _ in range(m)] for _ in range(n+1)]
edge_v = [[0 for _ in range(m+1)] for _ in range(n)]

for i in range(1, n+1):
	for j in range(1, m):
		edge_h[i][j] = edge_h[i][j-1] + edge_h[i-1][j] - edge_h[i-1][j-1] + (int(s[i][j]) + int(s[i][j+1]) == 2)

for i in range(1, n):
	for j in range(1, m+1):
		edge_v[i][j] = edge_v[i][j-1] + edge_v[i-1][j] - edge_v[i-1][j-1] + (int(s[i][j]) + int(s[i+1][j]) == 2)

def edge_num(x1, y1, x2, y2):
	h = edge_h[x2][y2-1] - edge_h[x1-1][y2-1] - edge_h[x2][y1-1] + edge_h[x1-1][y1-1]
	v = edge_v[x2-1][y2] - edge_v[x1-1][y2] - edge_v[x2-1][y1-1] + edge_v[x1-1][y1-1]
	return h+v

for _ in range(q):
	x1, y1, x2, y2 = map(int, input().split())
	b = block_num(x1, y1, x2, y2)
	e = edge_num(x1, y1, x2, y2)
	print(b-e)
### BUGGY CODE ###

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

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

#print(h)

o = [0]* n

for a in range(1,n):
    o[a] = min(o[b]+abs(h[a]-h[b]) for b in range(max(0,a-k),a))

print(o[-1])


### FIXED CODE ###

def main():
	N, K = map(int, input().split())
	h = list(map(int, input().split()))
 
	dp=[0]*N
 
	for i in range(1,N):
		dp[i] = min(
			dp[g] + abs(h[i] - h[g]) for g in range(max(i-K,0), i)
		)
	print(dp[N-1])
main()
### BUGGY CODE ###

N = int(input())

str_list = [input() for i in range(N)]

cnt_dict = {}

for str in str_list:
    s_str = "".join(sorted(str))
    if s_str not in cnt_dict.keys():
        cnt_dict[s_str] = 1
        continue
    cnt_dict[s_str] += 1

import itertools

total = 0
for key in cnt_dict.keys():
    cnt = cnt_dict[key]
    if cnt < 2:
        continue
    total += len(list(itertools.combinations(range(cnt), 2)))

print(total)

### FIXED CODE ###


N = int(input())

cnt_dict = {}

for i in range(N):
    s_list = list(input())
    s_list.sort()
    s_str = "".join(s_list)
    if s_str not in cnt_dict.keys():
        cnt_dict[s_str] = 1
        continue
    cnt_dict[s_str] += 1

import itertools
comb = itertools.combinations

total = 0
for key in cnt_dict.keys():
    cnt = cnt_dict[key]
    if cnt < 2:
        continue
    total += cnt * (cnt - 1) // 2

print(total)
### BUGGY CODE ###

n,w = map(int, input().split())
wv = []
vsum=0
for _ in range(n):
    tmp = list(map(int,input().split()))
    wv.append(tmp)
    vsum += tmp[1]

INF = 1 << 30

dp = [[INF for i in range(vsum+1)] for j in range(n+1)]
dp[0][0]=0

for i in range(1,n+1):
    now_w,now_v =wv[i-1]
    for v in range(vsum+1):
        dp[i][v] = dp[i-1][v]
        if v - now_v >= 0:
            dp[i][v] = min(dp[i][v],dp[i-1][v-now_v] + now_w)

ans=0
for val in range(len(dp[-1])):
    if dp[-1][val] <= w:
        ans=val
print(ans)

### FIXED CODE ###

n,w = map(int, input().split())
wv = []
vsum=0
for _ in range(n):
    tmp = list(map(int,input().split()))
    wv.append(tmp)
    vsum += tmp[1]

dp = [[float("inf") for i in range(vsum+1)] for j in range(n+1)]
dp[0][0]=0

for i in range(1,n+1):
    now_w,now_v =wv[i-1]
    for v in range(vsum+1):
        dp[i][v] = dp[i-1][v]
        if v - now_v >= 0:
            dp[i][v] = min(dp[i][v],dp[i-1][v-now_v] + now_w)

ans=0
for val in range(len(dp[-1])):
    if dp[-1][val] <= w:
        ans=val
print(ans)