C11111333133313232233133313331333133313231313131211113313331333132233131112321   >>    C1111133313331323223313331333133313331323131313121111331333133313223313111232   <<    C11111333133313232233133313331333133313231313131211113313331333132233131112323   >>      C11111333133313232233133313331333133313231313131211113313331333132233131112322   >>