C3133313112331333131123313331323133313231323223313331333132323111   >>    C313331311233133313112331333132313331323132322331333133313232311   <<    C3133313112331333131123313331323133313231323223313331333132323113   >>      C3133313112331333131123313331323133313231323223313331333132323112   >>