begin
d[i,j]:=0;
for k:=1 to n do
d[i,j]:=d[i,j]+ma[i,k]*b[k,j];
end;



writeln;
writeln('Final matrix:');
for i:=1 to n do
begin;
writeln;
for j:=1 to n do
begin;
d[i,j]:=b[i,j]*ma[i,j];
write(d[i,j]:4);
end;
end;
end.
Что тут неправильно? подскажите пожалуйста

const n=2;vara,b,c,d,ma: array [1..n,1..n] of integer;i,j,k: integer;beginrandomize;writeln (' Matrix A;');for i:=1 to n dobeginwriteln;for j:=1 to n dobegina[i,j]:=random(10);write (a[i,j]:4);end;end;writeln;writeln ('Matrix C;');for i:=1 to n dobeginwriteln;for j:=1 to n dobeginc[i,j]:=random(10);write (c[i,j]:4);end;end;writeln;writeln ('Matrix B');for i:=1 to n dobeginwriteln;for j:=1 to n dobeginb[i,j]:=a[i,j]+c[i,j];write (b[i,j]:4);end;end;writeln;

writeln('Transpose matrix C');for i:=1 to n dobeginwriteln;for j:=1 to n dobeginma[i,j]:=c[j,i]; write(ma[i,j]:4);end;end;begind[i,j]:=0;for k:=1 to n dod[i,j]:=d[i,j]+ma[i,k]*b[k,j]; end;writeln;writeln('Final matrix:');for i:=1 to n dobegin;writeln;for j:=1 to n dobegin;d[i,j]:=b[i,j]*ma[i,j];write(d[i,j]:4);end;end;end.writeln('Transpose matrix C');for i:=1 to n dobeginwriteln;for j

writeln;writeln('Final matrix:');for i:=1 to n dobeginfor j:=1 to n dobegind[i,j]:=0;for k:=1 to n dod[i,j]:=d[i,j]+ma[i,k]*b[k,j]; write(d[i,j]:4);end;writeln;end;end.