'''
Online Python Compiler.
Code, Compile, Run and Debug python program online.
Write your code in this editor and press "Run" button to execute it.
'''
thrust = 1.11
weight = 1.11
Calculator = "hi"
print("What Calculator? Currently only TWR.")
Calculator = input()
if Calculator == "TWR":
print("What is the weight of your rocket? (in tons)")
weight = float(input()) * 9806.65
print("What is the thrust of your rocket? (in newtons)")
thrust = float(input())
print("Your thrust to weight ratio is")
print(float(thrust) / float(weight))