C11112331333132311331333133313331333132311213331333133313121323231   >>    C1111233133313231133133313331333133313231121333133313331312132323   <<    C11112331333132311331333133313331333132311213331333133313121323233   >>      C11112331333132311331333133313331333132311213331333133313121323232   >>