C1111133313331323223313331333133313331333232233133112111112213231333132313131   >>    C111113331333132322331333133313331333133323223313311211111221323133313231313   <<    C1111133313331323223313331333133313331333232233133112111112213231333132313133   >>      C1111133313331323223313331333133313331333232233133112111112213231333132313132   >>