Program Penjumlahan Matrik (PASCAL)

Berikut ini adalah program menampilkan dan menjumlahkan dua matrik :
Selamat mencoba

program Penjumlahan_Matrix;
uses crt;
const kolom=10;
baris=10;
type matrix=array[1..baris,1..kolom] of integer;
var matrix_A,matrix_B:matrix;
a,b:integer;
procedure InputMatrix(var x:matrix);
var i,j:integer;
begin
for i := 1 to a do
begin
for j := 1 to b do
begin
write('Masukkan Elemen[',i,',',j,']:');readln(x[i,j]);
end;
end;
end;
procedure CetakMatrix(var x:matrix);
var i,j:integer;
begin
for i := 1 to a do
begin
for j := 1 to b do
begin
write(x[i,j]:4);
end;
writeln;
end;
end;
procedure JumlahMatrix(var x,y:matrix);
var z:matrix;
i,j:integer;
begin
for i:=1 to a do
begin
for j:=1 to b do
begin
z[i,j]:=x[i,j] + y[i,j];
write(z[i,j]:4);
end;
writeln;
end;
end;
begin
clrscr;
write('Masukkan Jumlah Baris : ');readln(a);
write('Masukkan Jumlah kolom : ');readln(b);
if (a>10) or (b>10) then
begin
writeln('Max Kolom dan baris adalah 10!');
exit;
end;
clrscr;
writeln('Input Matrix A');
InputMatrix(matrix_A);
writeln;
writeln('Input Matrix B');
InputMatrix(matrix_B);
clrscr;
writeln('Matrix A');
CetakMatrix(matrix_A);
writeln;
writeln('Matrix B');
CetakMatrix(matrix_B);
writeln;
writeln('Penjumlahan Matrix A dan Matrix B');
JumlahMatrix(matrix_A,matrix_B);
readkey;
end.