import csv
import math

g=9.8**2

class dinosaur:
	def __init__(self, name, leg_length, diet, stride_length, stance):
		self.name = name
		self.leg_length = leg_length
		self.diet = diet
		self.stride_length = stride_length
		self.stance = stance
		self.speed = self.getSpeed()

	def getSpeed(self):
		return ((self.stride_length / self.leg_length) -1) * math.sqrt(self.leg_length * g)

def readCSV(file):
	reader = csv.DictReader(open(file))
	result = {}
	for row in reader:
		key = row.pop('NAME')
		result[key] = row
	return result

def getDeets(legdiet, stridestance):
	dinos = []
	ldd = readCSV(legdiet)
	ssd = readCSV(stridestance)
	for d in ldd:
		dinos.append(dinosaur(d, float(ldd[d]['LEG_LENGTH']), ldd[d]['DIET'], float(ssd[d]['STRIDE_LENGTH']), ssd[d]['STANCE']))
	return dinos

if __name__ == '__main__':
	dinos = sorted(getDeets("dataset1.csv", "dataset2.csv"), key=lambda x: x.speed, reverse=True)
	i = 0
	while i < len(dinos):
		if dinos[i].stance == "bipedal":
			print("%s" % dinos[i].name)
		i=i+1