C121212123112323223313132322331323331323331322331313233313231333112331   >>    C12121212311232322331313232233132333132333132233131323331323133311233   <<    C121212123112323223313132322331323331323331322331313233313231333112333   >>      C121212123112323223313132322331323331323331322331313233313231333112332   >>