C11112331312111112111133133313331333132212111133133313331333133311112321   >>    C1111233131211111211113313331333133313221211113313331333133313331111232   <<    C11112331312111112111133133313331333132212111133133313331333133311112323   >>      C11112331312111112111133133313331333132212111133133313331333133311112322   >>