C3133313112331333131123313331323133313231323223313331323311113311   >>    C313331311233133313112331333132313331323132322331333132331111331   <<    C3133313112331333131123313331323133313231323223313331323311113313   >>      C3133313112331333131123313331323133313231323223313331323311113312   >>