C12121212311232322331313232233132333132313232223132313231312311321   >>    C1212121231123232233131323223313233313231323222313231323131231132   <<    C12121212311232322331313232233132333132313232223132313231312311323   >>      C12121212311232322331313232233132333132313232223132313231312311322   >>