C12121212311232322331313232233132333132333132233132311331323233121   >>    C1212121231123232233131323223313233313233313223313231133132323312   <<    C12121212311232322331313232233132333132333132233132311331323233123   >>      C12121212311232322331313232233132333132333132233132311331323233122   >>