x $=$ int$($input$())$

while $20<=$ x $<=98$:

print$($x$,$ end$=\text{'}$

$\text{'})$

x $-=1$

if x $<88$:

break

elif x $<77$:

break

elif x $<66$:

break

elif x $<55$:

break

elif x $<44$:

break

elif x $<33$:

break

elif x $<22$:

break

elif x $<11$:

break

else:

print$("$Input must be $20-98")$