C12121212311232322331313232233132333132333132233132313231312323321   >>    C1212121231123232233131323223313233313233313223313231323131232332   <<    C12121212311232322331313232233132333132333132233132313231312323323   >>      C12121212311232322331313232233132333132333132233132313231312323322   >>