C12121212311232322331313232233132333132313232223132313231311112321   >>    C1212121231123232233131323223313233313231323222313231323131111232   <<    C12121212311232322331313232233132333132313232223132313231311112323   >>      C12121212311232322331313232233132333132313232223132313231311112322   >>