puts [[-6, -3], [-6, -1], [-5, -4], [-5, 0], [-2, -3], [-2, -1], [-3, -4], [-3, 0], [-6, 1], [-5, -2], [-5, 2], [-2, 1], [-3, -2], [-3, 2], [-4, -5], [-4, -1], [-1, -4], [-1, -2], [-2, -5], [-4, 3], [-1, 0], [-1, 2], [-2, 3], [2, -3], [2, -1], [1, -4], [1, 0], [2, 1], [1, -2], [1, 2], [0, -5], [0, -1], [0, 3], [-6, 3], [-5, 4], [-3, 4], [-4, -3], [-4, 1], [-4, 5], [-1, 4], [-2, 5], [2, 3], [1, 4], [0, -3], [0, 1], [0, 5], [-3, -6], [-1, -6], [3, -4], [3, -2], [2, -5], [3, 0], [1, -6], [-3, 6], [-1, 6], [3, 2], [3, 4], [2, 5], [1, 6], [6, -3], [6, -1], [5, -4], [5, 0], [6, 1], [5, -2], [5, 2], [4, -5], [4, -1], [4, 3], [6, 3], [5, 4], [4, -3], [4, 1], [4, 5], [3, -6], [3, 6]].include?(gets.split.map(&:to_i)) ? :YES : :NO