C1111233131211111211113313331333133313221211113313331333133313112113113131   >>    C111123313121111121111331333133313331322121111331333133313331311211311313   <<    C1111233131211111211113313331333133313221211113313331333133313112113113133   >>      C1111233131211111211113313331333133313221211113313331333133313112113113132   >>