problema D

# Problem D
n = int(input())
inp = input().split(" ")
people = [ int(x) for x in inp ]
inp = input().split(" ")
s, f = int(inp[0]), int(inp[1])
r = f-s#+1 # tamaño de la ventana
max_s, idx_max = sum( people[i] for i in range(r) ), 0
sum_ac = max_s
for j in range(n):
    # print(sum_ac, idx_max, res)
    sum_ac = sum_ac - people[j] + people[(r+j)%n]
    if sum_ac>=max_s:
        max_s, idx_max = sum_ac, (j+1)%n
res = (n-idx_max+s)%n if (n-idx_max+s)%n else n
print(res)