C11112331333132311331333133112111133132313232233313231323233231   >>    C1111233133313231133133313311211113313231323223331323132323323   <<    C11112331333132311331333133112111133132313232233313231323233233   >>      C11112331333132311331333133112111133132313232233313231323233232   >>