C11111333133313232233133313331333133313231333133313331133132233121   >>    C1111133313331323223313331333133313331323133313331333113313223312   <<    C11111333133313232233133313331333133313231333133313331133132233123   >>      C11111333133313232233133313331333133313231333133313331133132233122   >>