function square(state,control)
if(control>=state) then
return nil
else
control=control+1
return control,control*control
end
end
for k,v in square,9,0 do
print(k,v)
end
function square(state,control)
if(control>=state) then
return nil
else
control=control+1
return control,control*control
end
end
for k,v in square,9,0 do
print(k,v)
end