Problem:
Exhaustive Search

Write a program which reads a sequence A of n elements and an integer M, and outputs "yes" if you can make M by adding elements in A, otherwise "no". You can use an element only once.

You are given the sequence A and q questions where each question contains Mi.

Input

In the first line n is given. In the second line, n integers are given. In the third line q is given. Then, in the fourth line, q integers (Mi) are given.

Output

For each question Mi, print yes or no.

Constraints

n ≤ 20

q ≤ 200

1 ≤ elements in A ≤ 2000

1 ≤ Mi ≤ 2000

Sample Input 1

5
1 5 7 10 21
8
2 4 17 8 22 21 100 35

Sample Output 1

no
no
yes
yes
yes
yes
no
no

Notes

You can solve this problem by a Burte Force approach. Suppose solve(p, t) is a function which checkes whether you can make t by selecting elements after p-th element (inclusive). Then you can recursively call the following functions:

solve(0, M)

solve(1, M-{sum created from elements before 1st element})

solve(2, M-{sum created from elements before 2nd element})

...

The recursive function has two choices: you selected p-th element and not. So, you can check solve(p+1, t-A[p]) and solve(p+1, t) in solve(p, t) to check the all combinations.

For example, the following figure shows that 8 can be made by A[0] + A[2].

Solution in Ruby (judge verdict: Time Limit Exceeded)

gets
as = gets.split.map(&:to_i)
gets
ms = gets.split.map(&:to_i)
min = as.min

def can_make?(m, numbers)
  return false if numbers.size <= 1
  (2..numbers.size).each {|n|
    return true if numbers.combination(n).any? {|a| a.inject(:+) == m}
  }
  false
end

for m in ms
  if m < min
    puts "no"
    next
  end

  if as.include?(m)
    puts "yes"
    next
  end

  pickups = as.select{|a| a < m}
  puts can_make?(m, pickups) ? "yes" : "no"
end