// Exercice 1

const form_ex1 = document.getElementById("form_ex1");




// Exercice 2

const form_ex2_euros = document.getElementById("form_ex2_euros");
const form_ex2_livres = document.getElementById("form_ex2_livres");
const livre_en_euros = 1.16



// Exercice 3

const form_ex3 = document.getElementById("form_ex3");