from numpy import*

v = array(eval(input("numeros inteiros: ")))
t = 0 
a = 0
n = size(v)

while(t<n):
	if (v[t]<0):
		a = a + 1
	t = t + 1

v1 = zeros(n-a, dtype = int)
t = 0
i = 0 
while (t<n):
	if (v[t]>= 0):
		v1[i]=v[t]
		i = i +1
		t = t+1
	else:
		t = t+ 1
print(v1)