uses crt;
var
i,j,n,k,m:integer;
a:boolean;
x,y,z:array[1..100] of integer;
begin
clrscr;
k:=0;
writeln('vvedite razmer massivov x y');
readln(n,m);
for i:=1 to n do
begin
writeln('vvedite ',i,' element v massiv x');
readln(x[i]);
end;
for i:=1 to m do
begin
writeln('vvedite ',i,' element v massiv y');
readln(y[i]);
end;
for i:=1 to n do
begin
a:=true;
for j:=1 to m do
if x[i]=y[j] then
a:=false;
if a then
begin
k:=k+1;
z[k]:=x[i];
end;
end;
for i:=1 to m do
begin
a:=true;
for j:=1 to n do
if x[j]=y[i] then
a:=false;
if a then
begin
k:=k+1;
z[k]:=y[i];
end;
end;
for i:=1 to k do
write(z[i],' ');
writeln;
readln;
end.