C312322331333132212111133133313331333133312121111121111331211111232311321   >>    C31232233133313221211113313331333133313331212111112111133121111123231132   <<    C312322331333132212111133133313331333133312121111121111331211111232311323   >>      C312322331333132212111133133313331333133312121111121111331211111232311322   >>