def cree():
    return [0] * 6

def contient(s, x):
    paquet = x // 64
    bit = x % 64
    return s[paquet] & (1 << bit) != 0

def ajoute(s, x):
    paquet = x // 64
    bit = x % 64
    s[paquet] = s[paquet] | (1 << bit)