Programm = Sequenz.
Sequenz = (Anweisung | Wiederholung) { " " (Anweisung | Wiederholung) }.
Anweisung = VorwaertsGehen | RechtsDrehen | LinksDrehen.
VorwaertsGehen = "F" "(" Laenge ")".
RechtsDrehen = "-" "(" Winkel ")".
LinksDrehen = "+" "(" Winkel ")".
Laenge = Zahl.
Winkel = Zahl.
Zahl = Ziffer [Ziffer] [Ziffer] [Ziffer] .
Ziffer = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9".
Wiederholung = "R" Zahl "["Sequenz"]".