C1111233133313231133133313331333132313331323113121111331311333121   >>    C111123313331323113313331333133313231333132311312111133131133312   <<    C1111233133313231133133313331333132313331323113121111331311333123   >>      C1111233133313231133133313331333132313331323113121111331311333122   >>