C11112331333132311331333133313331333132313311331333133313223113311   >>    C1111233133313231133133313331333133313231331133133313331322311331   <<    C11112331333132311331333133313331333132313311331333133313223113313   >>      C11112331333132311331333133313331333132313311331333133313223113312   >>