A fluid is flowing steadily under laminar conditions over a thin rectangular plate at temperature T_s as shown in the figure below. The velocity and temperature of the free stream are u_∞ and T_∞, respectively. When the fluid flow is only in the x-direction, h_x is the local heat transfer coefficient. Similarly, when the fluid flow is only in the y-direction, h_y is the corresponding local heat transfer coefficient. Use the correlation Nu = 0.332 (Re)^1/2 (Pr)^1/3 for the local heat transfer coefficient, where Nu, Re, and Pr are the appropriate Nusselt, Reynolds, and Prandtl numbers, respectively. The average heat transfer coefficients are defined as h̅_l = (1/l) ∫₀^l h_x dx and h̅_w = (1/w) ∫₀^w h_y dy. If w = 1 m and l = 4 m, the value of the ratio of h̅_w to h̅_l is _______ (in integer).