C111113331333132322331333133313331311233132333132313331323311331333132313231211   >>    C11111333133313232233133313331333131123313233313231333132331133133313231323121   <<    C111113331333132322331333133313331311233132333132313331323311331333132313231213   >>      C111113331333132322331333133313331311233132333132313331323311331333132313231212   >>