C12121212311232322331313232233132333132333132233132313231232331   >>    C1212121231123232233131323223313233313233313223313231323123233   <<    C12121212311232322331313232233132333132333132233132313231232333   >>      C12121212311232322331313232233132333132333132233132313231232332   >>