I233231323331311331313232233132211233132333132322223313232212321   >>    I23323132333131133131323223313221123313233313232222331323221232   <<    I233231323331311331313232233132211233132333132322223313232212323   >>      I233231323331311331313232233132211233132333132322223313232212322   >>