C11112331333132311331333133313331333132311213331333133312111112132331   >>    C1111233133313231133133313331333133313231121333133313331211111213233   <<    C11112331333132311331333133313331333132311213331333133312111112132333   >>      C11112331333132311331333133313331333132311213331333133312111112132332   >>