**TI83F*

Created by TI-Smartview CE 5.4.0.1858     ±    C7EX150P    ž PYCD"07_Indice_Tlespe_ex150_corrige.py def bambou():
    n = 0
    while 500*1.05**n-400<1000:
        n = n+1
    return(n)
        
print(bambou())
¼+