# pSort

Time Limit: 2 seconds

Memory Limit: 256 megabytes

## Description

One day n cells of some array decided to play the following game. Initially each cell contains a number which is equal to it's ordinal number (starting from 1). Also each cell determined it's favourite number. On it's move i-th cell can exchange it's value with the value of some other j-th cell, if |i - j| = di, where di is a favourite number of i-th cell. Cells make moves in any order, the number of moves is unlimited.

The favourite number of each cell will be given to you. You will also be given a permutation of numbers from 1 to n. You are to determine whether the game could move to this state.

## Input

The first line contains positive integer n (1 ≤ n ≤ 100) — the number of cells in the array. The second line contains n distinct integers from 1 to n — permutation. The last line contains n integers from 1 to n — favourite numbers of the cells.

## Output

If the given state is reachable in the described game, output YES, otherwise NO.

## Sample Input

Input55 4 3 2 11 1 1 1 1OutputYESInput74 3 5 1 2 7 64 6 6 1 6 6 1OutputNOInput74 2 5 1 3 7 64 6 6 1 6 6 1OutputYES

## Sample Output

None

None

None