C12121212311232322331313232233132333132333132233132313311223131   >>    C1212121231123232233131323223313233313233313223313231331122313   <<    C12121212311232322331313232233132333132333132233132313311223133   >>      C12121212311232322331313232233132333132333132233132313311223132   >>