Const n = 4;
m = 4;
var i,j,k: integer;
a: array [1..n,1..m] of integer;
begin
randomize;
for i:=1 to n do begin
for j:=1 to m do begin
a[i,j]:=random(10);
write(a[i,j]:3);
end;
writeln;
end;
for i:=1 to n do
for j:=i+1 to m do
begin
k:=a[i,j];
a[i,j]:=a[j,i];
a[j,i]:=k;
end;
writeln;
for i:=1 to n do begin
for j:=1 to m do
write(a[i,j]:3);
writeln;
end;
end.