Построить блок-схему алгоритма для вычисления значения функции y по формуле z=3y2 /sin(4x). заранее

Программа шифровки:
DATA "ауоыэяюёие"
DATA "бвгджзклмнпрстфхцчшщ"
DATA "ъйь"
DIM s10 AS STRING, s20 AS STRING, s3 AS STRING
DIM i AS INTEGER
DIM s AS STRING, t AS STRING
CLS
READ s10, s20, s3
RANDOMIZE TIMER
INPUT "Введите фразу: ", s
t = ""
FOR i = 1 TO LEN(s)
   t = t + MID$(s, i, 1)
   t = t + MID$(s10, INT(10 * RND + 1), 1)
   t = t + MID$(s20, INT(20 * RND + 1), 1)
   t = t + MID$(s3, INT(3 * RND + 1), 1)
NEXT i
PRINT t
END

Программа дешифровки:
DIM s AS STRING, t AS STRING, i AS INTEGER
CLS
INPUT "Введите фразу: ", s
t = ""
FOR i = 1 TO LEN(s) STEP 4
   t = t + MID$(s, i, 1)
NEXT i
PRINT t
END

Program velobike;

Uses crt,graph;

Var gr:integer;

gm:integer;

x,y:integer;

begin

gr:=detect;

initgraph(gr,gm,'..\bgi');

x:=600;

y:=250;

repeat

for x:=0 to 600 do

begin

cleardevice;

setbkcolor(8);

setcolor(2);

setlinestyle(1,0,1);

rectangle(1,3,639,475);

setfillstyle(1,6);

bar(2,280,638,475);

setcolor(6);

setfillstyle(1,2);

circle(x-150,y,27);

floodfill(x-140,y-10,6);

setcolor(yellow);

circle(x-150,y,3);

setcolor(6);

setfillstyle(1,2);

circle(x-0,y,27);

floodfill(x-0,y-10,6);

setcolor(yellow);

circle(x-0,y,3);

setcolor(yellow);

circle(x-70,y,10);

circle(x-70,y,2);

setcolor(yellow);

arc(x-150,y,355,190,30);

arc(x-0,y,445,200,30);

setcolor(2);

setlinestyle(0,0,2);

line(0,280,639,280);

setcolor(white);

setlinestyle(0,2,3);

moveto(x-110,y-50);

lineto(x-15,y-50);

moveto(x-150,y);

lineto(x-70,y);

lineto(x-10,y-35);

moveto(x-70,y);

lineto(x-110,y-50);

moveto(x-150,y);

lineto(x-110,y-50);

moveto(x-150,y);

lineto(x-170,y-35);

lineto(x-123,y-35);

moveto(x-0,y);

lineto(x-20,y-73);

lineto(x-40,y-60);

moveto(x-20,y-73);

lineto(x-12,y-90);

moveto(x-150,y);

lineto(x-180,y-10);

moveto(x-0,y);

lineto(x-30,y);

setcolor(6);

setlinestyle(0,0,1);

moveto(x-70,y);

lineto(x-55,y-20);

setcolor(red);

lineto(x-45,y-20);

setcolor(8);

moveto(x-70,y);

lineto(x-75,y+20);

setcolor(6);

lineto(x-85,y+20);

setcolor(6);

moveto(x-110,y-50);

lineto(x-115,y-63);

setcolor(red);

moveto(x-40,y-60);

lineto(x-50,y-60);

moveto(x-12,y-90);

lineto(x-22,y-90);

setcolor(red);

setlinestyle(0,0,3);

moveto(x-123,y-63);

lineto(x-103,y-63);

delay(10000);

end;

settextstyle(0,0,3);

cleardevice;

setcolor(red);

outtextxy(30,240,'XoTuTe IIocMoTpeTb eLLLe?');

outtextxy(100,280,'    Ha}|{MuTe Enter      ');

readln;

until keypressed;

readln;

closegraph;

end.