我就是按照题意来写的，但不知道哪里出错了QAQ

n=int(input())
s=[eval(i) for i in input().split()]
m,p1,s1,s2=map(int,input().split())
s[p1-1]+=s1
a=0
b=0
for i in range(0,m):
    a+=s[i]*(m-i-1)
for j in range(m,n):
    b+=s[j]*(j-m+1)
a1=a
b1=b
c=abs(a-b)
ans=0
for p in range(n):
    if p<n:
        a1+=s2*(m-p-1)
    if p>n:
        b1+=s2*(m-p+1)
    if(abs(a1-b1)<c):
        c=abs(a1-b1)
        ans=p
    a1=a
    b1=b
print(ans+1)