C111123313331323113313331333133313331323132333112331323223323131   >>    C11112331333132311331333133313331333132313233311233132322332313   <<    C111123313331323113313331333133313331323132333112331323223323133   >>      C111123313331323113313331333133313331323132333112331323223323132   >>