int n;cin>>n;
vector<int> v(n);
for(int &i:v)cin>>i;
sort(v.begin(),v.end());

for(int i=0;i<n;i++){
    int kk=v[i];//kk==v[i]
    for(int j=0;j<n;j++)v[j]-=kk;//<---different output if i replace 'kk' with 'v[i]'
    for(int asd:v)cout<<asd<<" ";cout<<"\n";
}
//the output is different for 'kk' and 'v[i]', why??