var f,g:text;
    n,a,b,c,i:longint;
    h:array[1..100000]of integer;
begin
assign(f,'arbint.in');reset(f);
assign(g,'arbint.out');rewrite(g);
readln(f,n,m);
for i:=1 to n do read(f,h[i]);
for i:=1 to m do
     begin
     read(f,c,a,b);
     if c=0 then begin
                 if h[a]>=h[b] then writeln(g,h[a])
                 else writeln(g,h[b]);
                 end
     else h[a]:=b;
     end;
close(f);
close(g);
end.