C11112331333132311331333133313331333132313311331333133313331322222313231121   >>    C1111233133313231133133313331333133313231331133133313331333132222231323112   <<    C11112331333132311331333133313331333132313311331333133313331322222313231123   >>      C11112331333132311331333133313331333132313311331333133313331322222313231122   >>