C1111233133313231133133313331333133313231121333133313331211111323311331   >>    C111123313331323113313331333133313331323112133313331333121111132331133   <<    C1111233133313231133133313331333133313231121333133313331211111323311333   >>      C1111233133313231133133313331333133313231121333133313331211111323311332   >>