C3133313112331333131123313331323133313231323223313331333132313113311   >>    C313331311233133313112331333132313331323132322331333133313231311331   <<    C3133313112331333131123313331323133313231323223313331333132313113313   >>      C3133313112331333131123313331323133313231323223313331333132313113312   >>