C11112331333132311331333133313331333132313311331333133313221211211   >>    C1111233133313231133133313331333133313231331133133313331322121121   <<    C11112331333132311331333133313331333132313311331333133313221211213   >>      C11112331333132311331333133313331333132313311331333133313221211212   >>