ex 5 s10

def saisie():
    n=input("n:")
    return n
def premier(n):
    c=0
    for i in range(2,(n//2)+1):
        if n%i==0:
            c=c+1
    return (c==0)
def superpremier(n):
    test=True
    i=len(n)-1
    while test==True and i!=0:
        if not(premier(int(n[0:i]))==True):
            test=False
        i=i-1
    return test==True
n=saisie()
if superpremier(n)==True:
    print("est super premier")
else:
    print("non")