C11111333133313232233133313331333133313231313131211113313331333211321   >>    C1111133313331323223313331333133313331323131313121111331333133321132   <<    C11111333133313232233133313331333133313231313131211113313331333211323   >>      C11111333133313232233133313331333133313231313131211113313331333211322   >>