the_list = [(0, 0), (-2, -1), (-4, -2), (-6, -3), (-6, -1), (-5, -4), (-5, 0), (-3, -4), (-3, 0), (-2, -3), (-2, -1), (-4, 0), (-6, -1), (-6, 1), (-5, -2), (-5, 2), (-3, -2), (-3, 2), (-2, -1), (-2, 1), (-3, -3), (-5, -4), (-5, -2), (-4, -5), (-4, -1), (-2, -5), (-2, -1), (-1, -4), (-1, -2), (-3, 1), (-5, 0), (-5, 2), (-4, -1), (-4, 3), (-2, -1), (-2, 3), (-1, 0), (-1, 2), (-1, -3), (-3, -4), (-3, -2), (-2, -5), (-2, -1), (0, -5), (0, -1), (1, -4), (1, -2), (-1, 1), (-3, 0), (-3, 2), (-2, -1), (-2, 3), (0, -1), (0, 3), (1, 0), (1, 2), (0, -2), (-2, -3), (-2, -1), (-1, -4), (-1, 0), (1, -4), (1, 0), (2, -3), (2, -1), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (-2, 1), (-4, 0), (-6, -1), (-6, 1), (-5, -2), (-5, 2), (-3, -2), (-3, 2), (-2, -1), (-2, 1), (-4, 2), (-6, 1), (-6, 3), (-5, 0), (-5, 4), (-3, 0), (-3, 4), (-2, 1), (-2, 3), (-3, -1), (-5, -2), (-5, 0), (-4, -3), (-4, 1), (-2, -3), (-2, 1), (-1, -2), (-1, 0), (-3, 3), (-5, 2), (-5, 4), (-4, 1), (-4, 5), (-2, 1), (-2, 5), (-1, 2), (-1, 4), (-1, -1), (-3, -2), (-3, 0), (-2, -3), (-2, 1), (0, -3), (0, 1), (1, -2), (1, 0), (-1, 3), (-3, 2), (-3, 4), (-2, 1), (-2, 5), (0, 1), (0, 5), (1, 2), (1, 4), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (0, 2), (-2, 1), (-2, 3), (-1, 0), (-1, 4), (1, 0), (1, 4), (2, 1), (2, 3), (-1, -2), (-3, -3), (-5, -4), (-5, -2), (-4, -5), (-4, -1), (-2, -5), (-2, -1), (-1, -4), (-1, -2), (-3, -1), (-5, -2), (-5, 0), (-4, -3), (-4, 1), (-2, -3), (-2, 1), (-1, -2), (-1, 0), (-2, -4), (-4, -5), (-4, -3), (-3, -6), (-3, -2), (-1, -6), (-1, -2), (0, -5), (0, -3), (-2, 0), (-4, -1), (-4, 1), (-3, -2), (-3, 2), (-1, -2), (-1, 2), (0, -1), (0, 1), (0, -4), (-2, -5), (-2, -3), (-1, -6), (-1, -2), (1, -6), (1, -2), (2, -5), (2, -3), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (1, -3), (-1, -4), (-1, -2), (0, -5), (0, -1), (2, -5), (2, -1), (3, -4), (3, -2), (1, -1), (-1, -2), (-1, 0), (0, -3), (0, 1), (2, -3), (2, 1), (3, -2), (3, 0), (-1, 2), (-3, 1), (-5, 0), (-5, 2), (-4, -1), (-4, 3), (-2, -1), (-2, 3), (-1, 0), (-1, 2), (-3, 3), (-5, 2), (-5, 4), (-4, 1), (-4, 5), (-2, 1), (-2, 5), (-1, 2), (-1, 4), (-2, 0), (-4, -1), (-4, 1), (-3, -2), (-3, 2), (-1, -2), (-1, 2), (0, -1), (0, 1), (-2, 4), (-4, 3), (-4, 5), (-3, 2), (-3, 6), (-1, 2), (-1, 6), (0, 3), (0, 5), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (0, 4), (-2, 3), (-2, 5), (-1, 2), (-1, 6), (1, 2), (1, 6), (2, 3), (2, 5), (1, 1), (-1, 0), (-1, 2), (0, -1), (0, 3), (2, -1), (2, 3), (3, 0), (3, 2), (1, 3), (-1, 2), (-1, 4), (0, 1), (0, 5), (2, 1), (2, 5), (3, 2), (3, 4), (1, -2), (-1, -3), (-3, -4), (-3, -2), (-2, -5), (-2, -1), (0, -5), (0, -1), (1, -4), (1, -2), (-1, -1), (-3, -2), (-3, 0), (-2, -3), (-2, 1), (0, -3), (0, 1), (1, -2), (1, 0), (0, -4), (-2, -5), (-2, -3), (-1, -6), (-1, -2), (1, -6), (1, -2), (2, -5), (2, -3), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (2, -4), (0, -5), (0, -3), (1, -6), (1, -2), (3, -6), (3, -2), (4, -5), (4, -3), (2, 0), (0, -1), (0, 1), (1, -2), (1, 2), (3, -2), (3, 2), (4, -1), (4, 1), (3, -3), (1, -4), (1, -2), (2, -5), (2, -1), (4, -5), (4, -1), (5, -4), (5, -2), (3, -1), (1, -2), (1, 0), (2, -3), (2, 1), (4, -3), (4, 1), (5, -2), (5, 0), (1, 2), (-1, 1), (-3, 0), (-3, 2), (-2, -1), (-2, 3), (0, -1), (0, 3), (1, 0), (1, 2), (-1, 3), (-3, 2), (-3, 4), (-2, 1), (-2, 5), (0, 1), (0, 5), (1, 2), (1, 4), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (0, 4), (-2, 3), (-2, 5), (-1, 2), (-1, 6), (1, 2), (1, 6), (2, 3), (2, 5), (2, 0), (0, -1), (0, 1), (1, -2), (1, 2), (3, -2), (3, 2), (4, -1), (4, 1), (2, 4), (0, 3), (0, 5), (1, 2), (1, 6), (3, 2), (3, 6), (4, 3), (4, 5), (3, 1), (1, 0), (1, 2), (2, -1), (2, 3), (4, -1), (4, 3), (5, 0), (5, 2), (3, 3), (1, 2), (1, 4), (2, 1), (2, 5), (4, 1), (4, 5), (5, 2), (5, 4), (2, -1), (0, -2), (-2, -3), (-2, -1), (-1, -4), (-1, 0), (1, -4), (1, 0), (2, -3), (2, -1), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (1, -3), (-1, -4), (-1, -2), (0, -5), (0, -1), (2, -5), (2, -1), (3, -4), (3, -2), (1, 1), (-1, 0), (-1, 2), (0, -1), (0, 3), (2, -1), (2, 3), (3, 0), (3, 2), (3, -3), (1, -4), (1, -2), (2, -5), (2, -1), (4, -5), (4, -1), (5, -4), (5, -2), (3, 1), (1, 0), (1, 2), (2, -1), (2, 3), (4, -1), (4, 3), (5, 0), (5, 2), (4, -2), (2, -3), (2, -1), (3, -4), (3, 0), (5, -4), (5, 0), (6, -3), (6, -1), (4, 0), (2, -1), (2, 1), (3, -2), (3, 2), (5, -2), (5, 2), (6, -1), (6, 1), (2, 1), (0, 0), (-2, -1), (-2, 1), (-1, -2), (-1, 2), (1, -2), (1, 2), (2, -1), (2, 1), (0, 2), (-2, 1), (-2, 3), (-1, 0), (-1, 4), (1, 0), (1, 4), (2, 1), (2, 3), (1, -1), (-1, -2), (-1, 0), (0, -3), (0, 1), (2, -3), (2, 1), (3, -2), (3, 0), (1, 3), (-1, 2), (-1, 4), (0, 1), (0, 5), (2, 1), (2, 5), (3, 2), (3, 4), (3, -1), (1, -2), (1, 0), (2, -3), (2, 1), (4, -3), (4, 1), (5, -2), (5, 0), (3, 3), (1, 2), (1, 4), (2, 1), (2, 5), (4, 1), (4, 5), (5, 2), (5, 4), (4, 0), (2, -1), (2, 1), (3, -2), (3, 2), (5, -2), (5, 2), (6, -1), (6, 1), (4, 2), (2, 1), (2, 3), (3, 0), (3, 4), (5, 0), (5, 4), (6, 1), (6, 3)]

goal = map(int, raw_input().split())
goal = tuple(goal)
print 'YES' if goal in the_list else 'NO'