C11112331333132311331333133112111133132313232233312111113331323123231   >>    C1111233133313231133133313311211113313231323223331211111333132312323   <<    C11112331333132311331333133112111133132313232233312111113331323123233   >>      C11112331333132311331333133112111133132313232233312111113331323123232   >>