def fibo(n):
    if n == 0:
        return 1
    elif n == 1:
        return 1
    else:
        return fibo(n-1) + fibo(n-2)


def yo():
    print 'Je suis la!'

def yo2():
    print 'Je suis la2!'

def yo3():
    print 'Je suis la3!'

def yo4(): print 'etest'