mon_tab= [8, 9, 18, 9, 2, 7]
tri_selection(mon_tab)
    for i in range(0, len(tab)-1):
        mini=tab[i]
        i_mini=i
        for j in range (i+1, len(tab):
            if tab[j] < mini:
            i_mini=tab[j]
            i_mini=j
    tab[i],tab[i_mini]=tab[i_mini],tab[i]
return tab


def tri_insertion(tab):
    for i in range(, len(tab)
print(tab)