C11111333133313232233133313331333133313231333133313331133321211   >>    C1111133313331323223313331333133313331323133313331333113332121   <<    C11111333133313232233133313331333133313231333133313331133321213   >>      C11111333133313232233133313331333133313231333133313331133321212   >>