C11112331333132311331333133112111133132313232233312111111211321   >>    C1111233133313231133133313311211113313231323223331211111121132   <<    C11112331333132311331333133112111133132313232233312111111211323   >>      C11112331333132311331333133112111133132313232233312111111211322   >>