--- /dev/null
+PROGRAM UNTERGURT(OUTPUT);
+
+ CONST R=168.3;
+ S=188.1;
+
+ VAR X,Y,R2,WKONST: REAL;
+
+BEGIN
+ R2 := R*R;
+ WKONST := SQRT(R2-S*S/4);
+
+ X := 0;
+ REPEAT
+ Y := SQRT(R2-X*X) - WKONST;
+ WRITELN(X :10:2, Y :10:2);
+ X := X + 10
+ UNTIL X>90
+END.