C31313132333131133132233132233131121133132313231111331323133313231232322331   >>    C3131313233313113313223313223313112113313231323111133132313331323123232233   <<    C31313132333131133132233132233131121133132313231111331323133313231232322333   >>      C31313132333131133132233132233131121133132313231111331323133313231232322332   >>