#yuki893
s=[0 for i in xrange(100)]
n=int(raw_input())
t=[]
for i in xrange(n):
 a=map(int,raw_input().split())
 a.extend(s)
 t.append(a)
for i in xrange(1,101):
 for j in xrange(n):
  if t[j][i]:
   print t[j][i],
print