C121212123112323223313132322331323331323331322331313233313231323112131   >>    C12121212311232322331313232233132333132333132233131323331323132311213   <<    C121212123112323223313132322331323331323331322331313233313231323112133   >>      C121212123112323223313132322331323331323331322331313233313231323112132   >>