import sys

if len(sys.argv) != 2:
	print "Usage:", sys.argv[0], "<20MP>"
	sys.exit(0)

try:
	tmp = int(sys.argv[1])
except:
	print "Invalid number"
	sys.exit(0)

# Convert tmp to estimated threshold power
tmp = tmp * .95;
zone6 = int(tmp * 1.21)
zone5 = int(tmp * 1.06)
zone4 = int(tmp * .91)
zone3 = int(tmp * .76)
zone2 = int(tmp * .55)
print "Zone 6 (Anaerobic):\t\t>", zone6
print "Zone 5 (VO2Max):\t\t", zone5, "-", zone6 - 1
print "Zone 4 (Threshold):\t\t", zone4, "-", zone5 - 1
print "Zone 3 (Tempo):\t\t\t", zone3, "-", zone4 - 1
print "Zone 2 (Endurance):\t\t", zone2, "-", zone3 - 1
print "Zone 1 (Active Recovery):\t<", zone2 - 1