C121212123112323223313132322331323331323331322331313231312312331   >>    C12121212311232322331313232233132333132333132233131323131231233   <<    C121212123112323223313132322331323331323331322331313231312312333   >>      C121212123112323223313132322331323331323331322331313231312312332   >>