x=150
s=1
lista=[]
for i in range(1,x+1):
	lista.append(i)
	s=s+1
	print (''.join(str(n) for n in lista))
r=len(lista)
for n in range(1,r):
	lista.remove(r)
	print (''.join(str(n) for n in lista))
	r=r-1