C1111233133313231133133313331333133313231121333133313331211111122131   >>    C111123313331323113313331333133313331323112133313331333121111112213   <<    C1111233133313231133133313331333133313231121333133313331211111122133   >>      C1111233133313231133133313331333133313231121333133313331211111122132   >>