I233231323331311331313232233132211233132333132322223313231311121   >>    I23323132333131133131323223313221123313233313232222331323131112   <<    I233231323331311331313232233132211233132333132322223313231311123   >>      I233231323331311331313232233132211233132333132322223313231311122   >>