include

include

include

using namespace std; int a[2005],b[1005]; int main(){

int n,m;
cin>>n>>m;
for(int i=0;i<n;i++){
	cin>>a[i];
}
for(int i=0;i<m;i++){
	cin>>b[i];
	a[i+n]=b[i]; 
}
sort(a,a+n+m);
for(int i=0;i<n+m;i++)cout<<a[i]<<" "; 
return 0;

}