C11111333133313232233133313331333133313231312111133132311213223321   >>    C1111133313331323223313331333133313331323131211113313231121322332   <<    C11111333133313232233133313331333133313231312111133132311213223323   >>      C11111333133313232233133313331333133313231312111133132311213223322   >>