C3123223313331322121111331333133313231323223313331333211232322311   >>    C312322331333132212111133133313331323132322331333133321123232231   <<    C3123223313331322121111331333133313231323223313331333211232322313   >>      C3123223313331322121111331333133313231323223313331333211232322312   >>