C11112331333132311331333133112111133132313232233312111113112331   >>    C1111233133313231133133313311211113313231323223331211111311233   <<    C11112331333132311331333133112111133132313232233312111113112333   >>      C11112331333132311331333133112111133132313232233312111113112332   >>