C31333131123313331311233133313231333132313232233112211231323311   >>    C3133313112331333131123313331323133313231323223311221123132331   <<    C31333131123313331311233133313231333132313232233112211231323313   >>      C31333131123313331311233133313231333132313232233112211231323312   >>