C11111333133313232233133313331333133313231313131211111323222321   >>    C1111133313331323223313331333133313331323131313121111132322232   <<    C11111333133313232233133313331333133313231313131211111323222323   >>      C11111333133313232233133313331333133313231313131211111323222322   >>