C11112331333132311331333133313331312111113311212111133132322121311   >>    C1111233133313231133133313331333131211111331121211113313232212131   <<    C11112331333132311331333133313331312111113311212111133132322121313   >>      C11112331333132311331333133313331312111113311212111133132322121312   >>