C11112331333132311331333133313331333132311213331333133313331221323211   >>    C1111233133313231133133313331333133313231121333133313331333122132321   <<    C11112331333132311331333133313331333132311213331333133313331221323213   >>      C11112331333132311331333133313331333132311213331333133313331221323212   >>