C13223313311212111133133313331333133313232233133313331323221211111232212311   >>    C1322331331121211113313331333133313331323223313331333132322121111123221231   <<    C13223313311212111133133313331333133313232233133313331323221211111232212313   >>      C13223313311212111133133313331333133313232233133313331323221211111232212312   >>