C1111233133313231133133313331333132313331323132233131211113332321   >>    C111123313331323113313331333133313231333132313223313121111333232   <<    C1111233133313231133133313331333132313331323132233131211113332323   >>      C1111233133313231133133313331333132313331323132233131211113332322   >>