#!/usr/bin/python
# TYPE:sciencemath
# DESC:Converts your P, V, m, and T values to a friendly LaTeX representation of the ideal gas law equation.

P = input("P: ")
V = input("V: ")
m = input("m: ")
T = input("T: ")
R = 8.31

M = (m*R*T)/(P*V)

print "$$ \\frac{ "+str(m)+"g \\times 8.31\\frac{kPa \\times l}{mol \\times K} \\times "+str(T)+"K }{ "+str(P)+"kPa \\times "+str(V)+"dm^3 } = "+str(M)+"g/mol $$"