N = gets.to_i
M = gets.to_i
Q = M.times.map{
  gets.split.take(2).map(&:to_i)
}

def f(a, query)
  if query.empty?
    a.index(&:odd?)
  else
    car, *cdr = query
    i, j = car
    a[i], a[j] = a[j], a[i]
    f(a, cdr)
  end
end

A = [0] * 4
A[N] = 1
p f(A, Q)