# Author: Steven Carr
# Last Edited: October 2021
# Calculates the wind chill based on user input
import stdio
import sys
import math
# Two user inputs as potential decimals
t = float(sys.argv[1])
v = float(sys.argv[2])
# Equation to calculate Wind Chill
w = 35.74 + (0.6215 * t) + ((0.4275 * t) - 35.75) * (v ** 0.16)
# If t > 50, ONLY print 'Value of t must be <= 50 F
if t > 50:
    stdio.writeln('Value of t must be <= 50 F')
# If v <= 3 and t > 50, print same as above, if ONLY v <= 3 but
# t <= 50, print 'Value of v must be > 3 mph
if v <= 3:
    if v <= 3 and t > 50:
        stdio.writeln('Value of t must be <= 50 F')
    if v <= 3 and t <= 50:
        stdio.writeln('Value of v must be > 3 mph')
# If both t and v meet the correct parameters, output the
# calculation for w
if v > 3 and t <= 50:
    stdio.writeln(w)