C1111233133313231133133313331333133313231121333133313331333121211331323121211   >>    C111123313331323113313331333133313331323112133313331333133312121133132312121   <<    C1111233133313231133133313331333133313231121333133313331333121211331323121213   >>      C1111233133313231133133313331333133313231121333133313331333121211331323121212   >>