def histoListApp(text):
    txt=list(text)
    HLA=[]
    for lettre in txt:
        if lettre not in HLA:
            HLA.append(lettre)
            HLA.append(text.count(lettre))
    return HLA

def histoListLex(text):
    provisoir=[]
    for i in range(0,len(histoListApp(text)),2):
        provisoir.append((histoListApp(text))[i])
    provisoir=sorted(provisoir)
    HLL=[]
    for j in provisoir:
        HLL.append(j)
        b=text.count(j)
        HLL.append(b)
    return HLL


def histoDico(text):
    HD={}
    for i in text:
        if i in HD:
            HD[i]+=1
        else:
            HD[i]=1
    return sorted(list(HD.items()))


def permutations5(text) :
    Mrot=[""for i in range(len(text))]
    for i in range(len(text)):
        Mrot[i]=text[-i:]+text[:-i]
    return Mrot