C1111233131211111211113313331333133313331311323323133313331323311332233131   >>    C111123313121111121111331333133313331333131132332313331333132331133223313   <<    C1111233131211111211113313331333133313331311323323133313331323311332233133   >>      C1111233131211111211113313331333133313331311323323133313331323311332233132   >>