C1111133313331323223313331333133313331333131211113313331311211331333133323131   >>    C111113331333132322331333133313331333133313121111331333131121133133313332313   <<    C1111133313331323223313331333133313331333131211113313331311211331333133323133   >>      C1111133313331323223313331333133313331333131211113313331311211331333133323132   >>