I3311331323331322331323331311213231323132313331322331323132333132313231221   >>    I331133132333132233132333131121323132313231333132233132313233313231323122   <<    I3311331323331322331323331311213231323132313331322331323132333132313231223   >>      I3311331323331322331323331311213231323132313331322331323132333132313231222   >>