C3133313112331333131123313331323133313231323223313331333132323133313231313331   >>    C313331311233133313112331333132313331323132322331333133313232313331323131333   <<    C3133313112331333131123313331323133313231323223313331333132323133313231313333   >>      C3133313112331333131123313331323133313231323223313331333132323133313231313332   >>