C111123313331323113313331333133313331323123231333133313331322332112321   >>    C11112331333132311331333133313331333132312323133313331333132233211232   <<    C111123313331323113313331333133313331323123231333133313331322332112323   >>      C111123313331323113313331333133313331323123231333133313331322332112322   >>