C1111233133313231133133313331333133313231232313331333133313231133132112322321   >>    C111123313331323113313331333133313331323123231333133313331323113313211232232   <<    C1111233133313231133133313331333133313231232313331333133313231133132112322323   >>      C1111233133313231133133313331333133313231232313331333133313231133132112322322   >>