if y != None:
newstack.push(y)
else:
s2 = True
if s1 == True and s2==True:
break
newstack.print_i("r")
return
x=Stack()
s=Stack()
sp=Stack()
s.push(9)
s.push(7)
s.push(5)
s.push(3)
s.push(1)
sp.push(14)
sp.push(12)
sp.push(10)
sp.push(8)
sp.push(6)
sp.push(4)
sp.push(2)
combine_stacks(x,s,sp)
x.combine(s,sp)
x.print_i("r")
