C111123313331323113313331333133313331323132311233133313223331232311   >>    C11112331333132311331333133313331333132313231123313331322333123231   <<    C111123313331323113313331333133313331323132311233133313223331232313   >>      C111123313331323113313331333133313331323132311233133313223331232312   >>