C11112331333132311331333133112111133132313232233133313111112131   >>    C1111233133313231133133313311211113313231323223313331311111213   <<    C11112331333132311331333133112111133132313232233133313111112133   >>      C11112331333132311331333133112111133132313232233133313111112132   >>