C3133313112331333131123313331323133313231323223313331333132322212121   >>    C313331311233133313112331333132313331323132322331333133313232221212   <<    C3133313112331333131123313331323133313231323223313331333132322212123   >>      C3133313112331333131123313331323133313231323223313331333132322212122   >>