Xuanxuan and Kaikai are playing a game called "The Big Battle". The board of the game is a line segment with ~n~ barracks (labelled ~1 \sim n~ from left to right). The distance between any two adjacent numbered barracks is always ~1~ cm, that is, the board is a line segment of length ~n-1~ cm. There are ~c_i~ soldiers in barracks ~i~.

The figure below is an example of ~n = 6~:

Xuanxuan is on the left, representing "Dragon"; Kaikai is on the right, representing "Tiger". They used the barracks ~m~ as the dividing line. The soldiers on the left of the dividing line belong to the Dragon army, and the soldiers on the right of the line belong to the Tiger army. Soldiers in the barracks numbered ~m~ are very tangled; thus they do not belong to either side.

The strength of a barracks is defined as the number of soldiers in the barracks ~\times~ the distance from the barracks to the barracks ~m~; the total strength of an army participating in the game is defined as the sum of the strength of all barracks belonging to this army.

The figure below is an example of ~n = 6~, ~m = 4~, where red is the Dragon army and yellow is the Tiger army:

During the game, at a certain moment, a total of ~s_1~ soldiers suddenly appeared in the barracks ~p_1~. As friends of Xuanxuan and Kaikai, you know that if there is a huge difference in total strength between the Dragon army and Tiger army, Xuanxuan and Kaikai will not be willing to continue playing. In order to continue the game, you need to choose a barracks ~p_2~, and send out all ~s_2~ soldiers to barracks ~p_2~, so that the difference in total strength between the two sides is as small as possible.

The soldiers you are sending out belong to the army in the barracks you sent them out to (if you sent them into the barracks ~m~, they will not belong to any army).

Input Specification

The first line of the input contains a positive integer ~n~, representing the number of barracks.

The next line contains ~n~ space-separated positive integers, and the ~i~-th positive integer represents the initial number of soldiers ~c_i~ in barracks ~i~.

The next line contains four space-separated positive integers, representing ~m, p_1, s_1, s_2~ respectively.

Output Specification

Output a single line containing a positive integer, ~p_2~, representing the barracks you choose to send the soldiers to. If there are multiple optimal barracks, output the barracks with the smallest label.

Sample Input 1

6
2 3 2 3 2 3
4 6 5 2

Sample Output 1

2

Explanation for Sample 1

The two sides are divided by barracks ~m = 4~, and ~s_1 = 5~ soldiers suddenly appear in barracks ~p_1 = 6~.

The total strength of Dragon army is ~2 \times (4-1) + 3 \times (4-2) + 2 \times (4-3) = 14~.

The total strength of Tiger army is ~2 \times (5-4) + (3+5) \times (6-4) = 18~.

When you send ~s_2 = 2~ soldiers to the barracks ~p_2 = 2~, Dragon army's total strength becomes ~14 + 2 \times (4-2) = 18~.

At this time, the two sides are equal in total strength.

Sample Input 2

6
1 1 1 1 1 16
5 4 1 1

Sample Output 2

1

Explanation for Sample 2

The two sides are divided by barracks ~m = 5~, and ~s_1 = 1~ soldiers suddenly appear in barracks ~p_1 = 4~.

The total strength of Dragon army is ~1 \times (5-1) + 1 \times (5-2) + 1 \times (5-3) + (1+1) \times (5-4) = 11~.

The total strength of Tiger army is ~16 \times (6-5) = 16~.

When you send ~s_2 = 1~ soldiers to the barracks ~p_2 = 1~, Dragon army's total strength becomes ~11 + 1 \times (5-1) = 15~.

At this time, the difference between the two sides is minimized.

Constraints

~1 < m < n~, ~1 \le p_1 \le n~

For ~20\%~ of the data, ~n = 3~, ~m = 2~, ~c_i = 1~, ~s_1, s_2 \le 100~.

There is another ~20\%~ of the data, ~n \le 10~, ~p_1 = m~, ~c_i = 1~, ~s_1, s_2 \le 100~.

For ~60\%~ of the data, ~n \le 100~, ~c_i = 1~, ~s_1, s_2 \le 100~.

For ~80\%~ of the data, ~n \le 100~, ~c_i, s_1, s_2 \le 100~.

For ~100\%~ of the data, ~n \le 10^5~, ~c_i, s_1, s_2 \le 10^9~.

Problem translated to English by Tommy_Shan.