C132233133112121111331333133313331333132322331333133313233211111232223213121   >>    C13223313311212111133133313331333133313232233133313331323321111123222321312   <<    C132233133112121111331333133313331333132322331333133313233211111232223213123   >>      C132233133112121111331333133313331333132322331333133313233211111232223213122   >>