C3133313112331333131123313331323133313231323223313231313231323231   >>    C313331311233133313112331333132313331323132322331323131323132323   <<    C3133313112331333131123313331323133313231323223313231313231323233   >>      C3133313112331333131123313331323133313231323223313231313231323232   >>