print('Hello world!')

def name(f,x,p):
    j=0
    k=0
    for name in range(x):
        k=(16)**(-name)
        if f(j) < p:
            while f(j) < p:
                j += k
        elif f(j) > p:
            while f(j) > p:
                j -= k
        yield j

for i in name((lambda x:(x**2)),15,2):
    print(i)